correctly parse subject_scheme. datacite/datacite#338

Gemfile.lock

@@ -62,7 +62,7 @@ GEM
     aws-sdk-kms (1.5.0)
       aws-sdk-core (~> 3)
       aws-sigv4 (~> 1.0)
-    aws-sdk-s3 (1.9.0)
+    aws-sdk-s3 (1.9.1)
       aws-sdk-core (~> 3)
       aws-sdk-kms (~> 1)
       aws-sigv4 (~> 1.0)
@@ -91,7 +91,7 @@ GEM
       latex-decode (~> 0.0)
     binding_of_caller (0.8.0)
       debug_inspector (>= 0.0.1)
-    bolognese (0.9.93)
+    bolognese (0.9.94)
       activesupport (>= 4.2.5, < 6)
       benchmark_methods (~> 0.7)
       bibtex-ruby (~> 4.1)
@@ -116,7 +116,7 @@ GEM
       concurrent-ruby (~> 1.0)
     builder (3.2.3)
     byebug (10.0.2)
-    cancancan (2.1.4)
+    cancancan (2.2.0)
     capybara (3.0.2)
       addressable
       mini_mime (>= 0.1.3)
@@ -157,14 +157,14 @@ GEM
     css_parser (1.6.0)
       addressable
     dalli (2.7.8)
-    database_cleaner (1.6.2)
+    database_cleaner (1.7.0)
     debug_inspector (0.0.3)
     diff-lcs (1.3)
     docile (1.1.5)
     docopt (0.6.1)
-    domain_name (0.5.20170404)
+    domain_name (0.5.20180417)
       unf (>= 0.0.5, < 1.0.0)
-    dotenv (2.2.2)
+    dotenv (2.3.0)
     ebnf (1.1.2)
       rdf (>= 2.2, < 4.0)
       sxp (~> 1.0)
@@ -205,7 +205,7 @@ GEM
     htmlentities (4.3.4)
     http-cookie (1.0.3)
       domain_name (~> 0.5)
-    i18n (1.0.0)
+    i18n (1.0.1)
       concurrent-ruby (~> 1.0)
     i18n_data (0.8.0)
     iso8601 (0.9.1)