diff --git a/Pipfile.lock b/Pipfile.lock
index f561436..36684b3 100644
--- a/Pipfile.lock
+++ b/Pipfile.lock
@@ -3,19 +3,6 @@
         "hash": {
             "sha256": "656510c0ea6ffa3a545f4e29382f80a6009fa75ef121bb8fed67d3d1010916ef"
         },
-        "host-environment-markers": {
-            "implementation_name": "cpython",
-            "implementation_version": "3.6.0",
-            "os_name": "posix",
-            "platform_machine": "x86_64",
-            "platform_python_implementation": "CPython",
-            "platform_release": "4.9.49-moby",
-            "platform_system": "Linux",
-            "platform_version": "#1 SMP Wed Sep 27 23:17:17 UTC 2017",
-            "python_full_version": "3.6.0",
-            "python_version": "3.6",
-            "sys_platform": "linux"
-        },
         "pipfile-spec": 6,
         "requires": {},
         "sources": [
@@ -29,85 +16,75 @@
     "default": {
         "certifi": {
             "hashes": [
-                "sha256:54a07c09c586b0e4c619f02a5e94e36619da8e2b053e20f594348c0611803704",
-                "sha256:40523d2efb60523e113b44602298f0960e900388cf3bb6043f645cf57ea9e3f5"
+                "sha256:e4f3620cfea4f83eedc95b24abd9cd56f3c4b146dd0177e83a21b4eb49e21e50",
+                "sha256:fd7c7c74727ddcf00e9acd26bba8da604ffec95bf1c2144e67aff7a8b50e6cef"
             ],
-            "version": "==2017.7.27.1"
+            "version": "==2019.9.11"
         },
         "chardet": {
             "hashes": [
-                "sha256:fc323ffcaeaed0e0a02bf4d117757b98aed530d9ed4531e3e15460124c106691",
-                "sha256:84ab92ed1c4d4f16916e05906b6b75a6c0fb5db821cc65e70cbd64a3e2a5eaae"
+                "sha256:84ab92ed1c4d4f16916e05906b6b75a6c0fb5db821cc65e70cbd64a3e2a5eaae",
+                "sha256:fc323ffcaeaed0e0a02bf4d117757b98aed530d9ed4531e3e15460124c106691"
             ],
             "version": "==3.0.4"
         },
         "click": {
             "hashes": [
-                "sha256:29f99fc6125fbc931b758dc053b3114e55c77a6e4c6c3a2674a2dc986016381d",
-                "sha256:f15516df478d5a56180fbf80e68f206010e6d160fc39fa508b65e035fd75130b"
+                "sha256:2335065e6395b9e67ca716de5f7526736bfa6ceead690adf616d925bdc622b13",
+                "sha256:5b94b49521f6456670fdb30cd82a4eca9412788a93fa6dd6df72c94d5a8ff2d7"
             ],
-            "version": "==6.7"
+            "version": "==7.0"
         },
         "coverage": {
             "hashes": [
-                "sha256:c1456f66c536010cf9e4633a8853a9153e8fd588393695295afd4d0fc16c1d74",
-                "sha256:97a7ec51cdde3a386e390b159b20f247ccb478084d925c75f1faa3d26c01335e",
-                "sha256:83e955b975666b5a07d217135e7797857ce844eb340a99e46cc25525120417c4",
-                "sha256:483ed14080c5301048128bb027b77978c632dd9e92e3ecb09b7e28f5b92abfcf",
-                "sha256:ef574ab9640bcfa2f3c671831faf03f65788945fdf8efa4d4a1fffc034838e2a",
-                "sha256:c5a205b4da3c624f5119dc4d84240789b5906bb8468902ec22dcc4aad8aa4638",
-                "sha256:5dea90ed140e7fa9bc00463313f9bc4a6e6aff297b4969615e7a688615c4c4d2",
-                "sha256:f9e83b39d29c2815a38e4118d776b482d4082b5bf9c9147fbc99a3f83abe480a",
-                "sha256:700040c354f0230287906b1276635552a3def4b646e0145555bc9e2e5da9e365",
-                "sha256:7f1eacae700c66c3d7362a433b228599c9d94a5a3a52613dddd9474e04deb6bc",
-                "sha256:13ef9f799c8fb45c446a239df68034de3a6f3de274881b088bebd7f5661f79f8",
-                "sha256:dfb011587e2b7299112f08a2a60d2601706aac9abde37aa1177ea825adaed923",
-                "sha256:381be5d31d3f0d912334cf2c159bc7bea6bfe6b0e3df6061a3bf2bf88359b1f6",
-                "sha256:83a477ac4f55a6ef59552683a0544d47b68a85ce6a80fd0ca6b3dc767f6495fb",
-                "sha256:dfd35f1979da31bcabbe27bcf78d4284d69870731874af629082590023a77336",
-                "sha256:9681efc2d310cfc53863cc6f63e88ebe7a48124550fa822147996cb09390b6ab",
-                "sha256:53770b20ac5b4a12e99229d4bae57af0945be87cc257fce6c6c7571a39f0c5d4",
-                "sha256:8801880d32f11b6df11c32a961e186774b4634ae39d7c43235f5a24368a85f07",
-                "sha256:16db2c69a1acbcb3c13211e9f954e22b22a729909d81f983b6b9badacc466eda",
-                "sha256:ef43a06a960b46c73c018704051e023ee6082030f145841ffafc8728039d5a88",
-                "sha256:c3e2736664a6074fc9bd54fb643f5af0fc60bfedb2963b3d3f98c7450335e34c",
-                "sha256:17709e22e4c9f5412ba90f446fb13b245cc20bf4a60377021bbff6c0f1f63e7c",
-                "sha256:a2f7106d1167825c4115794c2ba57cc3b15feb6183db5328fa66f94c12902d8b",
-                "sha256:2a08e978f402696c6956eee9d1b7e95d3ad042959b71bafe1f3e4557cbd6e0ac",
-                "sha256:57f510bb16efaec0b6f371b64a8000c62e7e3b3e48e8b0a5745ade078d849814",
-                "sha256:0f1883eab9c19aa243f51308751b8a2a547b9b817b721cc0ecf3efb99fafbea7",
-                "sha256:e00fe141e22ce6e9395aa24d862039eb180c6b7e89df0bbaf9765e9aebe560a9",
-                "sha256:ec596e4401553caa6dd2e3349ce47f9ef82c1f1bcba5d8ac3342724f0df8d6ff",
-                "sha256:c820a533a943ebc860acc0ce6a00dd36e0fdf2c6f619ff8225755169428c5fa2",
-                "sha256:b7f7283eb7badd2b8a9c6a9d6eeca200a0a24db6be79baee2c11398f978edcaa",
-                "sha256:a5ed27ad3e8420b2d6b625dcbd3e59488c14ccc06030167bcf14ffb0f4189b77",
-                "sha256:d7b70b7b4eb14d0753d33253fe4f121ca99102612e2719f0993607deb30c6f33",
-                "sha256:4047dc83773869701bde934fb3c4792648eda7c0e008a77a0aec64157d246801",
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-                "sha256:0f649e68db74b1b5b8ca4161d08eb2b8fa8ae11af1ebfb80e80e112eb0ef5300",
-                "sha256:52964fae0fafef8bd283ad8e9a9665205a9fdf912535434defc0ec3def1da26b",
-                "sha256:36aa6c8db83bc27346ddcd8c2a60846a7178ecd702672689d3ea1828eb1a4d11",
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-                "sha256:4a678e1b9619a29c51301af61ab84122e2f8cc7a0a6b40854b808ac6be604300",
-                "sha256:8bb7c8dca54109b61013bc4114d96effbf10dea136722c586bce3a5d9fc4e730",
-                "sha256:1a41d621aa9b6ab6457b557a754d50aaff0813fad3453434de075496fca8a183",
-                "sha256:0fa423599fc3d9e18177f913552cdb34a8d9ad33efcf52a98c9d4b644edb42c5",
-                "sha256:e61a4ba0b2686040cb4828297c7e37bcaf3a1a1c0bc0dbe46cc789dde51a80fa",
-                "sha256:ce9ef0fc99d11d418662e36fd8de6d71b19ec87c2eab961a117cc9d087576e72"
+                "sha256:08907593569fe59baca0bf152c43f3863201efb6113ecb38ce7e97ce339805a6",
+                "sha256:0be0f1ed45fc0c185cfd4ecc19a1d6532d72f86a2bac9de7e24541febad72650",
+                "sha256:141f08ed3c4b1847015e2cd62ec06d35e67a3ac185c26f7635f4406b90afa9c5",
+                "sha256:19e4df788a0581238e9390c85a7a09af39c7b539b29f25c89209e6c3e371270d",
+                "sha256:23cc09ed395b03424d1ae30dcc292615c1372bfba7141eb85e11e50efaa6b351",
+                "sha256:245388cda02af78276b479f299bbf3783ef0a6a6273037d7c60dc73b8d8d7755",
+                "sha256:331cb5115673a20fb131dadd22f5bcaf7677ef758741312bee4937d71a14b2ef",
+                "sha256:386e2e4090f0bc5df274e720105c342263423e77ee8826002dcffe0c9533dbca",
+                "sha256:3a794ce50daee01c74a494919d5ebdc23d58873747fa0e288318728533a3e1ca",
+                "sha256:60851187677b24c6085248f0a0b9b98d49cba7ecc7ec60ba6b9d2e5574ac1ee9",
+                "sha256:63a9a5fc43b58735f65ed63d2cf43508f462dc49857da70b8980ad78d41d52fc",
+                "sha256:6b62544bb68106e3f00b21c8930e83e584fdca005d4fffd29bb39fb3ffa03cb5",
+                "sha256:6ba744056423ef8d450cf627289166da65903885272055fb4b5e113137cfa14f",
+                "sha256:7494b0b0274c5072bddbfd5b4a6c6f18fbbe1ab1d22a41e99cd2d00c8f96ecfe",
+                "sha256:826f32b9547c8091679ff292a82aca9c7b9650f9fda3e2ca6bf2ac905b7ce888",
+                "sha256:93715dffbcd0678057f947f496484e906bf9509f5c1c38fc9ba3922893cda5f5",
+                "sha256:9a334d6c83dfeadae576b4d633a71620d40d1c379129d587faa42ee3e2a85cce",
+                "sha256:af7ed8a8aa6957aac47b4268631fa1df984643f07ef00acd374e456364b373f5",
+                "sha256:bf0a7aed7f5521c7ca67febd57db473af4762b9622254291fbcbb8cd0ba5e33e",
+                "sha256:bf1ef9eb901113a9805287e090452c05547578eaab1b62e4ad456fcc049a9b7e",
+                "sha256:c0afd27bc0e307a1ffc04ca5ec010a290e49e3afbe841c5cafc5c5a80ecd81c9",
+                "sha256:dd579709a87092c6dbee09d1b7cfa81831040705ffa12a1b248935274aee0437",
+                "sha256:df6712284b2e44a065097846488f66840445eb987eb81b3cc6e4149e7b6982e1",
+                "sha256:e07d9f1a23e9e93ab5c62902833bf3e4b1f65502927379148b6622686223125c",
+                "sha256:e2ede7c1d45e65e209d6093b762e98e8318ddeff95317d07a27a2140b80cfd24",
+                "sha256:e4ef9c164eb55123c62411f5936b5c2e521b12356037b6e1c2617cef45523d47",
+                "sha256:eca2b7343524e7ba246cab8ff00cab47a2d6d54ada3b02772e908a45675722e2",
+                "sha256:eee64c616adeff7db37cc37da4180a3a5b6177f5c46b187894e633f088fb5b28",
+                "sha256:ef824cad1f980d27f26166f86856efe11eff9912c4fed97d3804820d43fa550c",
+                "sha256:efc89291bd5a08855829a3c522df16d856455297cf35ae827a37edac45f466a7",
+                "sha256:fa964bae817babece5aa2e8c1af841bebb6d0b9add8e637548809d040443fee0",
+                "sha256:ff37757e068ae606659c28c3bd0d923f9d29a85de79bf25b2b34b148473b5025"
             ],
-            "version": "==4.4.1"
+            "version": "==4.5.4"
         },
         "enum-compat": {
             "hashes": [
-                "sha256:939ceff18186a5762ae4db9fa7bfe017edbd03b66526b798dd8245394c8a4192"
+                "sha256:3677daabed56a6f724451d585662253d8fb4e5569845aafa8bb0da36b1a8751e",
+                "sha256:88091b617c7fc3bbbceae50db5958023c48dc40b50520005aa3bf27f8f7ea157"
             ],
-            "version": "==0.0.2"
+            "version": "==0.0.3"
         },
         "eventlet": {
             "hashes": [
-                "sha256:0a7d1e1d2f4dd2e0b2cb627dadf7a0f23de0eca88ba2d6af4229abe32a24dec9",
-                "sha256:08faffab88c1b08bd53ea28bf084a572c89f7e7648bd9d71e6116ac17a51a15d"
+                "sha256:08faffab88c1b08bd53ea28bf084a572c89f7e7648bd9d71e6116ac17a51a15d",
+                "sha256:0a7d1e1d2f4dd2e0b2cb627dadf7a0f23de0eca88ba2d6af4229abe32a24dec9"
             ],
+            "index": "pypi",
             "version": "==0.21.0"
         },
         "flask": {
@@ -115,121 +92,153 @@
                 "sha256:0749df235e3ff61ac108f69ac178c9770caeaccad2509cb762ce1f65570a8856",
                 "sha256:49f44461237b69ecd901cc7ce66feea0319b9158743dd27a2899962ab214dac1"
             ],
+            "index": "pypi",
             "version": "==0.12.2"
         },
         "flask-socketio": {
             "hashes": [
-                "sha256:0fb686f9d85f4f34dc6609f62fa96fe15176a6ea7e6179149d319fabc54c543b"
+                "sha256:0fb686f9d85f4f34dc6609f62fa96fe15176a6ea7e6179149d319fabc54c543b",
+                "sha256:11874b64dfb0769f32485170be73abd63d80edbdd209d876a7620575cbbd4ce1"
             ],
+            "index": "pypi",
             "version": "==2.9.2"
         },
         "greenlet": {
             "hashes": [
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+                "sha256:8041e2de00e745c0e05a502d6e6db310db7faa7c979b3a5877123548a4c0b214",
+                "sha256:81fcd96a275209ef117e9ec91f75c731fa18dcfd9ffaa1c0adbdaa3616a86043",
+                "sha256:853da4f9563d982e4121fed8c92eea1a4594a2299037b3034c3c898cb8e933d6",
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+                "sha256:9854f612e1b59ec66804931df5add3b2d5ef0067748ea29dc60f0efdcda9a638",
+                "sha256:99a26afdb82ea83a265137a398f570402aa1f2b5dfb4ac3300c026931817b163",
+                "sha256:a19bf883b3384957e4a4a13e6bd1ae3d85ae87f4beb5957e35b0be287f12f4e4",
+                "sha256:a9f145660588187ff835c55a7d2ddf6abfc570c2651c276d3d4be8a2766db490",
+                "sha256:ac57fcdcfb0b73bb3203b58a14501abb7e5ff9ea5e2edfa06bb03035f0cff248",
+                "sha256:bcb530089ff24f6458a81ac3fa699e8c00194208a724b644ecc68422e1111939",
+                "sha256:beeabe25c3b704f7d56b573f7d2ff88fc99f0138e43480cecdfcaa3b87fe4f87",
+                "sha256:d634a7ea1fc3380ff96f9e44d8d22f38418c1c381d5fac680b272d7d90883720",
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-            "version": "==0.4.12"
+            "version": "==0.4.15"
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         "idna": {
             "hashes": [
-                "sha256:8c7309c718f94b3a625cb648ace320157ad16ff131ae0af362c9f21b80ef6ec4",
-                "sha256:2c6a5de3089009e3da7c5dde64a141dbc8551d5b7f6cf4ed7c2568d0cc520a8f"
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+                "sha256:8c7309c718f94b3a625cb648ace320157ad16ff131ae0af362c9f21b80ef6ec4"
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             "version": "==2.6"
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         "itsdangerous": {
             "hashes": [
-                "sha256:cbb3fcf8d3e33df861709ecaf89d9e6629cff0a217bc2848f1b41cd30d360519"
+                "sha256:321b033d07f2a4136d3ec762eac9f16a10ccd60f53c0c91af90217ace7ba1f19",
+                "sha256:b12271b2047cb23eeb98c8b5622e2e5c5e9abd9784a153e9d8ef9cb4dd09d749"
             ],
-            "version": "==0.24"
+            "version": "==1.1.0"
         },
         "jinja2": {
             "hashes": [
-                "sha256:2231bace0dfd8d2bf1e5d7e41239c06c9e0ded46e70cc1094a0aa64b0afeb054",
-                "sha256:ddaa01a212cd6d641401cb01b605f4a4d9f37bfc93043d7f760ec70fb99ff9ff"
+                "sha256:74320bb91f31270f9551d46522e33af46a80c3d619f4a4bf42b3164d30b5911f",
+                "sha256:9fe95f19286cfefaa917656583d020be14e7859c6b0252588391e47db34527de"
             ],
-            "version": "==2.9.6"
+            "version": "==2.10.3"
         },
         "markupsafe": {
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-                "sha256:5c3213be557d0468f9df8fe2487eaf2990d9799202c5ff5cb8d394d09fad9b2a"
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+                "sha256:bf708455cd1e9fa96c05126e89a0c59b200d086c7df7bbafc7d9be769e4149a3",
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+                "sha256:fc993c9331d91766d54757bbc70231e29d5ceb2d1ac08b1570feaa0c38ab9582"
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+            "index": "pypi",
             "version": "==2.7.3.2"
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         "py": {
             "hashes": [
-                "sha256:2ccb79b01769d99115aa600d7eed99f524bf752bba8f041dc1c184853514655a",
-                "sha256:0f2d585d22050e90c7d293b6451c83db097df77871974d90efd5a30dc12fcde3"
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-            "version": "==1.4.34"
+            "version": "==1.8.0"
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         "pytest": {
             "hashes": [
-                "sha256:81a25f36a97da3313e1125fce9e7bbbba565bc7fec3c5beb14c262ddab238ac1",
-                "sha256:27fa6617efc2869d3e969a3e75ec060375bfb28831ade8b5cdd68da3a741dc3c"
+                "sha256:27fa6617efc2869d3e969a3e75ec060375bfb28831ade8b5cdd68da3a741dc3c",
+                "sha256:81a25f36a97da3313e1125fce9e7bbbba565bc7fec3c5beb14c262ddab238ac1"
             ],
+            "index": "pypi",
             "version": "==3.2.3"
         },
         "pytest-cov": {
             "hashes": [
-                "sha256:890fe5565400902b0c78b5357004aab1c814115894f4f21370e2433256a3eeec",
-                "sha256:03aa752cf11db41d281ea1d807d954c4eda35cfa1b21d6971966cc041bbf6e2d"
+                "sha256:03aa752cf11db41d281ea1d807d954c4eda35cfa1b21d6971966cc041bbf6e2d",
+                "sha256:890fe5565400902b0c78b5357004aab1c814115894f4f21370e2433256a3eeec"
             ],
+            "index": "pypi",
             "version": "==2.5.1"
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         "pytest-mock": {
@@ -237,25 +246,29 @@
                 "sha256:7ed6e7e8c636fd320927c5d73aedb77ac2eeb37196c3410e6176b7c92fdf2f69",
                 "sha256:920d1167af5c2c2ad3fa0717d0c6c52e97e97810160c15721ac895cac53abb1c"
             ],
+            "index": "pypi",
             "version": "==1.6.3"
         },
         "python-engineio": {
             "hashes": [
-                "sha256:fca35c7e4af42475552d53eea04a9280e2ccd331a032f41d17290ff3125a2291"
+                "sha256:2a4c874aea686e79f8ea9efc30748110df581df6d577d18bb5eaa1a8f2199d12",
+                "sha256:eae09ef72bbb13e66ad0bbe2fbb87271e0ba5e2ec8c6693c6be1e14239564e32"
             ],
-            "version": "==1.7.0"
+            "version": "==3.9.3"
         },
         "python-socketio": {
             "hashes": [
-                "sha256:f42d02bf6f446c09e0bd2f7842734dfc4eb49e5079130060a0e29068bd0cad29"
+                "sha256:506b2cf7a520b40ea0b3f25e1272eff8de134dce6f471c1f6bc0de8c90fe8c57",
+                "sha256:d4e2c23241afa0aae2a5bcc107523b2fcc71f5020df89a093f3634eb48955967"
             ],
-            "version": "==1.8.1"
+            "version": "==4.3.1"
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         "redis": {
             "hashes": [
                 "sha256:8a1900a9f2a0a44ecf6e8b5eb3e967a9909dfed219ad66df094f27f7d6f330fb",
                 "sha256:a22ca993cea2962dbb588f9f30d0015ac4afcc45bee27d3978c0dbe9e97c6c0f"
             ],
+            "index": "pypi",
             "version": "==2.10.6"
         },
         "requests": {
@@ -263,19 +276,21 @@
                 "sha256:6a1b267aa90cac58ac3a765d067950e7dbbf75b1da07e895d1f594193a40a38b",
                 "sha256:9c443e7324ba5b85070c4a818ade28bfabedf16ea10206da1132edaa6dda237e"
             ],
+            "index": "pypi",
             "version": "==2.18.4"
         },
         "six": {
             "hashes": [
-                "sha256:832dc0e10feb1aa2c68dcc57dbb658f1c7e65b9b61af69048abc87a2db00a0eb",
-                "sha256:70e8a77beed4562e7f14fe23a786b54f6296e34344c23bc42f07b15018ff98e9"
+                "sha256:3350809f0555b11f552448330d0b52d5f24c91a322ea4a15ef22629740f3761c",
+                "sha256:d16a0141ec1a18405cd4ce8b4613101da75da0e9a7aec5bdd4fa804d0e0eba73"
             ],
-            "version": "==1.11.0"
+            "version": "==1.12.0"
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         "sqlalchemy": {
             "hashes": [
                 "sha256:f1191e29e35b6fe1aef7175a09b1707ebb7bd08d0b17cb0feada76c49e5a2d1e"
             ],
+            "index": "pypi",
             "version": "==1.1.14"
         },
         "urllib3": {
@@ -287,10 +302,11 @@
         },
         "werkzeug": {
             "hashes": [
-                "sha256:e8549c143af3ce6559699a01e26fa4174f4c591dbee0a499f3cd4c3781cdec3d",
-                "sha256:903a7b87b74635244548b30d30db4c8947fe64c5198f58899ddcd3a13c23bb26"
+                "sha256:97660b282aa7e29f94f3fe378e5c7162d7ab9d601a8dbb1cbb2ffc8f0e54607d",
+                "sha256:cfd1281b1748288e59762c0e174d64d8bcb2b70e7c57bc4a1203c8825af24ac3"
             ],
-            "version": "==0.12.2"
+            "index": "pypi",
+            "version": "==0.15.3"
         }
     },
     "develop": {}