diff --git a/package-lock.json b/package-lock.json
index 9b7b096..3050424 100644
--- a/package-lock.json
+++ b/package-lock.json
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@@ -5732,6 +5912,12 @@
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+      "resolved": "https://registry.npmjs.org/which-module/-/which-module-2.0.0.tgz",
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@@ -5787,6 +5973,82 @@
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+      "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-6.2.0.tgz",
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+        "string-width": "^4.1.0",
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+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.0.tgz",
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+        "ansi-styles": {
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+          "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-4.2.1.tgz",
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+          "dev": true,
+          "requires": {
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+          "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-2.0.1.tgz",
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+          "dev": true,
+          "requires": {
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+        "color-name": {
+          "version": "1.1.4",
+          "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.4.tgz",
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+          "resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-8.0.0.tgz",
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+          "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-3.0.0.tgz",
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+        },
+        "string-width": {
+          "version": "4.2.0",
+          "resolved": "https://registry.npmjs.org/string-width/-/string-width-4.2.0.tgz",
+          "integrity": "sha512-zUz5JD+tgqtuDjMhwIg5uFVV3dtqZ9yQJlZVfq4I01/K5Paj5UHj7VyrQOJvzawSVlKpObApbfD0Ed6yJc+1eg==",
+          "dev": true,
+          "requires": {
+            "emoji-regex": "^8.0.0",
+            "is-fullwidth-code-point": "^3.0.0",
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+        "strip-ansi": {
+          "version": "6.0.0",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-6.0.0.tgz",
+          "integrity": "sha512-AuvKTrTfQNYNIctbR1K/YGTR1756GycPsg7b9bdV9Duqur4gv6aKqHXah67Z8ImS7WEz5QVcOtlfW2rZEugt6w==",
+          "dev": true,
+          "requires": {
+            "ansi-regex": "^5.0.0"
+          }
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+    },
     "wrappy": {
       "version": "1.0.2",
       "resolved": "https://repos.zeroturnaround.com/nexus/repository/zt-private-npm/wrappy/-/wrappy-1.0.2.tgz",
@@ -5803,23 +6065,10 @@
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-      "resolved": "https://registry.npmjs.org/ws/-/ws-3.3.3.tgz",
-      "integrity": "sha512-nnWLa/NwZSt4KQJu51MYlCcSQ5g7INpOrOMt4XV8j4dqTXdmlUmSHQ8/oLC069ckre0fRsgfvsKwbTdtKLCDkA==",
-      "dev": true,
-      "requires": {
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-        "safe-buffer": "~5.1.0",
-        "ultron": "~1.1.0"
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-      "dependencies": {
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-          "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
-          "integrity": "sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g==",
-          "dev": true
-        }
-      }
+      "version": "7.3.1",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-7.3.1.tgz",
+      "integrity": "sha512-D3RuNkynyHmEJIpD2qrgVkc9DQ23OrN/moAwZX4L8DfvszsJxpjQuUq3LMx6HoYji9fbIOBY18XWBsAux1ZZUA==",
+      "dev": true
     },
     "xdg-basedir": {
       "version": "3.0.0",
@@ -5832,6 +6081,15 @@
       "integrity": "sha1-wodrBhaKrcQOV9l+gRkayPQ5iz4=",
       "dev": true
     },
+    "xregexp": {
+      "version": "4.3.0",
+      "resolved": "https://registry.npmjs.org/xregexp/-/xregexp-4.3.0.tgz",
+      "integrity": "sha512-7jXDIFXh5yJ/orPn4SXjuVrWWoi4Cr8jfV1eHv9CixKSbU+jY4mxfrBwAuDvupPNKpMUY+FeIqsVw/JLT9+B8g==",
+      "dev": true,
+      "requires": {
+        "@babel/runtime-corejs3": "^7.8.3"
+      }
+    },
     "xtend": {
       "version": "4.0.2",
       "resolved": "https://registry.npmjs.org/xtend/-/xtend-4.0.2.tgz",
@@ -5847,6 +6105,83 @@
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       "integrity": "sha1-HBH5IY8HYImkfdUS+TxmmaaoHVI="
     },
+    "yargs": {
+      "version": "15.4.0",
+      "resolved": "https://registry.npmjs.org/yargs/-/yargs-15.4.0.tgz",
+      "integrity": "sha512-D3fRFnZwLWp8jVAAhPZBsmeIHY8tTsb8ItV9KaAaopmC6wde2u6Yw29JBIZHXw14kgkRnYmDgmQU4FVMDlIsWw==",
+      "dev": true,
+      "requires": {
+        "cliui": "^6.0.0",
+        "decamelize": "^3.2.0",
+        "find-up": "^4.1.0",
+        "get-caller-file": "^2.0.1",
+        "require-directory": "^2.1.1",
+        "require-main-filename": "^2.0.0",
+        "set-blocking": "^2.0.0",
+        "string-width": "^4.2.0",
+        "which-module": "^2.0.0",
+        "y18n": "^4.0.0",
+        "yargs-parser": "^18.1.2"
+      },
+      "dependencies": {
+        "ansi-regex": {
+          "version": "5.0.0",
+          "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.0.tgz",
+          "integrity": "sha512-bY6fj56OUQ0hU1KjFNDQuJFezqKdrAyFdIevADiqrWHwSlbmBNMHp5ak2f40Pm8JTFyM2mqxkG6ngkHO11f/lg==",
+          "dev": true
+        },
+        "emoji-regex": {
+          "version": "8.0.0",
+          "resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-8.0.0.tgz",
+          "integrity": "sha512-MSjYzcWNOA0ewAHpz0MxpYFvwg6yjy1NG3xteoqz644VCo/RPgnr1/GGt+ic3iJTzQ8Eu3TdM14SawnVUmGE6A==",
+          "dev": true
+        },
+        "is-fullwidth-code-point": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-3.0.0.tgz",
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+        },
+        "string-width": {
+          "version": "4.2.0",
+          "resolved": "https://registry.npmjs.org/string-width/-/string-width-4.2.0.tgz",
+          "integrity": "sha512-zUz5JD+tgqtuDjMhwIg5uFVV3dtqZ9yQJlZVfq4I01/K5Paj5UHj7VyrQOJvzawSVlKpObApbfD0Ed6yJc+1eg==",
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+          "requires": {
+            "emoji-regex": "^8.0.0",
+            "is-fullwidth-code-point": "^3.0.0",
+            "strip-ansi": "^6.0.0"
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+        "strip-ansi": {
+          "version": "6.0.0",
+          "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-6.0.0.tgz",
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+          "dev": true,
+          "requires": {
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+    },
+    "yargs-parser": {
+      "version": "18.1.3",
+      "resolved": "https://registry.npmjs.org/yargs-parser/-/yargs-parser-18.1.3.tgz",
+      "integrity": "sha512-o50j0JeToy/4K6OZcaQmW6lyXXKhq7csREXcDwk2omFPJEwUNOVtJKvmDr9EI1fAJZUyZcRF7kxGBWmRXudrCQ==",
+      "dev": true,
+      "requires": {
+        "camelcase": "^5.0.0",
+        "decamelize": "^1.2.0"
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+      "dependencies": {
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+          "version": "1.2.0",
+          "resolved": "https://registry.npmjs.org/decamelize/-/decamelize-1.2.0.tgz",
+          "integrity": "sha1-9lNNFRSCabIDUue+4m9QH5oZEpA=",
+          "dev": true
+        }
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     "yeast": {
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       "resolved": "https://registry.npmjs.org/yeast/-/yeast-0.1.2.tgz",
diff --git a/package.json b/package.json
index 31e5bed..eb52495 100644
--- a/package.json
+++ b/package.json
@@ -3,7 +3,7 @@
   "version": "0.7.2",
   "devDependencies": {
     "jasmine": "^3.5.0",
-    "karma": "^4.4.1",
+    "karma": "^5.1.0",
     "karma-coverage": "^2.0.2",
     "karma-jasmine": "^2.0.1",
     "karma-jasmine-jquery": "0.1.1",