Added Rubocop and initial config

.rubocop.yml

@@ -0,0 +1,37 @@
+# The behavior of RuboCop can be controlled via the .rubocop.yml
+# configuration file. It makes it possible to enable/disable
+# certain cops (checks) and to alter their behavior if they accept
+# any parameters. The file can be placed either in your home
+# directory or in some project directory.
+#
+# RuboCop will start looking for the configuration file in the directory
+# where the inspected file is and continue its way up to the root directory.
+#
+# See https://docs.rubocop.org/rubocop/configuration
+
+plugins:
+  - rubocop-rails
+
+AllCops:
+  NewCops: enable
+
+Style/StringLiterals:
+  Exclude:
+    - Gemfile # Mostly because of auto-generated files
+
+Bundler/OrderedGems:
+  Enabled: false
+
+Style/Documentation:
+  Enabled: false
+
+Rails/ActionOrder:
+  Enabled: false
+
+Metrics/AbcSize:
+  Exclude:
+    - db/migrate/*.rb
+
+Metrics/MethodLength:
+  Exclude:
+    - db/migrate/*.rb