Rubocop: Fixing error by updating gem

Fixing the error: undefined method `color' for ".":String. This was caused by a
gem requirement in rubocop and was fixed in 0.17.

.rubocop.yml

@@ -47,6 +47,24 @@ BracesAroundHashParameters:
 AlignHash:
   Enabled: false
 
+PredicateName:
+  Enabled: false # remove me
+
+DefaultScope:
+  Enabled: false # remove me?
+
+IndentationConsistency:
+  Enabled: false # remove me
+
+TrailingComma:
+  Enabled: false # remove me
+
+ConditionPosition:
+  Enabled: false # remove me
+
+AccessorMethodName:
+  Enabled: false # remove me
+
 # end TODO
 
 AllCops:
@@ -108,9 +126,6 @@ Lambda:
 FavorSprintf:
   Enabled: false # we use % for i18n
 
-ReduceArguments:
-  Enabled: false # good rule of thumb but not worth enforcing
-
 RedundantSelf:
   Enabled: false
 
@@ -128,3 +143,6 @@ Encoding:
 
 MethodCalledOnDoEndBlock:
   Enabled: true
+
+SingleLineBlockParams:
+  Enabled: false

katello.gemspec

@@ -66,7 +66,7 @@ Gem::Specification.new do |gem|
   gem.add_dependency "deface"
 
   # Testing
-  gem.add_development_dependency "rubocop", "0.15.0"
+  gem.add_development_dependency "rubocop", "0.17.0"
   gem.add_development_dependency "factory_girl_rails", "~> 1.4.0"
   gem.add_development_dependency "minitest-tags"
   gem.add_development_dependency "mocha", "~> 0.14.0"