Add rubocop

[houndci](https://houndci.com) was try to add it because I thought set of tools that can be found in the local environment is want I 'm handy when you pull request

.rubocop.yml

+inherit_from: .rubocop_todo.yml
+AllCops:
+  Exclude:
+    - 'vendor/**/*'
+    - 'gemfiles/vendor/**/*'

.rubocop_todo.yml

+# This configuration was generated by `rubocop --auto-gen-config`
+# on 2014-12-17 15:53:26 +0900 using RuboCop version 0.28.0.
+# The point is for the user to remove these configuration records
+# one by one as the offenses are removed from the code base.
+# Note that changes in the inspected code, or installation of new
+# versions of RuboCop, may require this file to be generated again.
+
+# Offense count: 77
+Lint/AmbiguousRegexpLiteral:
+  Enabled: false
+
+# Offense count: 6
+# Configuration parameters: AllowSafeAssignment.
+Lint/AssignmentInCondition:
+  Enabled: false
+
+# Offense count: 1
+# Cop supports --auto-correct.
+Lint/BlockAlignment:
+  Enabled: false
+
+# Offense count: 3
+# Configuration parameters: AlignWith, SupportedStyles.
+Lint/EndAlignment:
+  Enabled: false
+
+# Offense count: 3
+Lint/Eval:
+  Enabled: false
+
+# Offense count: 3
+Lint/HandleExceptions:
+  Enabled: false
+
+# Offense count: 1
+Lint/LiteralInCondition:
+  Enabled: false
+
+# Offense count: 4
+Lint/ParenthesesAsGroupedExpression:
+  Enabled: false
+
+# Offense count: 2
+Lint/RescueException:
+  Enabled: false
+
+# Offense count: 2
+Lint/ShadowingOuterLocalVariable:
+  Enabled: false
+
+# Offense count: 2
+# Cop supports --auto-correct.
+Lint/StringConversionInInterpolation:
+  Enabled: false
+
+# Offense count: 37
+# Cop supports --auto-correct.
+Lint/UnusedBlockArgument:
+  Enabled: false
+
+# Offense count: 39
+# Cop supports --auto-correct.
+Lint/UnusedMethodArgument:
+  Enabled: false
+
+# Offense count: 13
+Lint/UselessAssignment:
+  Enabled: false
+
+# Offense count: 29
+Metrics/AbcSize:
+  Max: 83
+
+# Offense count: 2
+# Configuration parameters: CountComments.
+Metrics/ClassLength:
+  Max: 398
+
+# Offense count: 5
+Metrics/CyclomaticComplexity:
+  Max: 21
+
+# Offense count: 804
+# Configuration parameters: AllowURI, URISchemes.
+Metrics/LineLength:
+  Max: 227
+
+# Offense count: 39
+# Configuration parameters: CountComments.
+Metrics/MethodLength:
+  Max: 58
+
+# Offense count: 4
+Metrics/PerceivedComplexity:
+  Max: 22
+
+# Offense count: 3
+Style/AccessorMethodName:
+  Enabled: false
+
+# Offense count: 5
+# Cop supports --auto-correct.
+Style/Alias:
+  Enabled: false
+
+# Offense count: 163
+# Cop supports --auto-correct.
+# Configuration parameters: EnforcedHashRocketStyle, EnforcedColonStyle, EnforcedLastArgumentHashStyle, SupportedLastArgumentHashStyles.
+Style/AlignHash:
+  Enabled: false
+
+# Offense count: 37
+# Cop supports --auto-correct.
+# Configuration parameters: EnforcedStyle, SupportedStyles.
+Style/AlignParameters:
+  Enabled: false
+
+# Offense count: 1
+# Cop supports --auto-correct.
+# Configuration parameters: EnforcedStyle, SupportedStyles.
+Style/AndOr:
+  Enabled: false
+
+# Offense count: 15
+# Cop supports --auto-correct.
+# Configuration parameters: EnforcedStyle, SupportedStyles.
+Style/BarePercentLiterals:
+  Enabled: false
+
+# Offense count: 4
+# Cop supports --auto-correct.
+Style/Blocks:
+  Enabled: false
+
+# Offense count: 29
+# Cop supports --auto-correct.
+# Configuration parameters: EnforcedStyle, SupportedStyles.
+Style/BracesAroundHashParameters:
+  Enabled: false
+
+# Offense count: 16
+Style/CaseEquality:
+  Enabled: false
+
+# Offense count: 2
+# Configuration parameters: IndentWhenRelativeTo, SupportedStyles, IndentOneStep.
+Style/CaseIndentation:
+  Enabled: false
+
+# Offense count: 13
+# Configuration parameters: EnforcedStyle, SupportedStyles.
+Style/ClassAndModuleChildren:
+  Enabled: false
+
+# Offense count: 3
+# Cop supports --auto-correct.
+# Configuration parameters: EnforcedStyle, SupportedStyles.
+Style/ClassCheck:
+  Enabled: false
+
+# Offense count: 5
+# Cop supports --auto-correct.
+Style/ColonMethodCall:
+  Enabled: false
+
+# Offense count: 11
+# Cop supports --auto-correct.
+Style/DeprecatedHashMethods:
+  Enabled: false
+
+# Offense count: 99
+Style/Documentation:
+  Enabled: false
+
+# Offense count: 6
+# Cop supports --auto-correct.
+# Configuration parameters: EnforcedStyle, SupportedStyles.
+Style/DotPosition:
+  Enabled: false
+
+# Offense count: 5
+Style/DoubleNegation:
+  Enabled: false
+
+# Offense count: 3
+Style/EachWithObject:
+  Enabled: false
+
+# Offense count: 3
+# Cop supports --auto-correct.
+Style/ElseAlignment:
+  Enabled: false
+
+# Offense count: 2
+Style/EmptyElse:
+  Enabled: false
+
+# Offense count: 5
+# Cop supports --auto-correct.
+# Configuration parameters: AllowAdjacentOneLineDefs.
+Style/EmptyLineBetweenDefs:
+  Enabled: false
+
+# Offense count: 3
+# Cop supports --auto-correct.
+Style/EmptyLines:
+  Enabled: false
+
+# Offense count: 33
+# Cop supports --auto-correct.
+# Configuration parameters: EnforcedStyle, SupportedStyles.
+Style/EmptyLinesAroundBlockBody:
+  Enabled: false
+
+# Offense count: 10
+# Cop supports --auto-correct.
+# Configuration parameters: EnforcedStyle, SupportedStyles.
+Style/EmptyLinesAroundClassBody:
+  Enabled: false
+
+# Offense count: 3
+# Cop supports --auto-correct.
+# Configuration parameters: EnforcedStyle, SupportedStyles.
+Style/EmptyLinesAroundModuleBody:
+  Enabled: false
+
+# Offense count: 2
+# Configuration parameters: EnforcedStyle, SupportedStyles.
+Style/For:
+  Enabled: false
+
+# Offense count: 6
+# Configuration parameters: EnforcedStyle, SupportedStyles.
+Style/FormatString:
+  Enabled: false
+
+# Offense count: 1
+# Configuration parameters: AllowedVariables.
+Style/GlobalVars:
+  Enabled: false
+
+# Offense count: 30
+# Configuration parameters: MinBodyLength.
+Style/GuardClause:
+  Enabled: false
+
+# Offense count: 135
+# Cop supports --auto-correct.
+# Configuration parameters: EnforcedStyle, SupportedStyles.
+Style/HashSyntax:
+  Enabled: false
+
+# Offense count: 13
+# Configuration parameters: MaxLineLength.
+Style/IfUnlessModifier:
+  Enabled: false
+
+# Offense count: 1
+# Cop supports --auto-correct.
+Style/IndentArray:
+  Enabled: false
+
+# Offense count: 30
+# Cop supports --auto-correct.
+# Configuration parameters: EnforcedStyle, SupportedStyles.
+Style/IndentHash:
+  Enabled: false
+
+# Offense count: 25
+# Cop supports --auto-correct.
+Style/IndentationConsistency:
+  Enabled: false
+
+# Offense count: 10
+# Cop supports --auto-correct.
+# Configuration parameters: Width.
+Style/IndentationWidth:
+  Enabled: false
+
+# Offense count: 35
+Style/Lambda:
+  Enabled: false
+
+# Offense count: 4
+# Cop supports --auto-correct.
+Style/LineEndConcatenation:
+  Enabled: false
+
+# Offense count: 14
+# Cop supports --auto-correct.
+Style/MethodCallParentheses:
+  Enabled: false
+
+# Offense count: 69
+# Cop supports --auto-correct.
+# Configuration parameters: EnforcedStyle, SupportedStyles.
+Style/MethodDefParentheses:
+  Enabled: false
+
+# Offense count: 1
+Style/ModuleFunction:
+  Enabled: false
+
+# Offense count: 10
+# Cop supports --auto-correct.
+# Configuration parameters: EnforcedStyle, SupportedStyles.
+Style/MultilineOperationIndentation:
+  Enabled: false
+
+# Offense count: 1
+Style/MultilineTernaryOperator:
+  Enabled: false
+
+# Offense count: 1
+# Cop supports --auto-correct.
+Style/NegatedIf:
+  Enabled: false
+
+# Offense count: 4
+# Configuration parameters: EnforcedStyle, MinBodyLength, SupportedStyles.
+Style/Next:
+  Enabled: false
+
+# Offense count: 1
+# Cop supports --auto-correct.
+Style/Not:
+  Enabled: false
+
+# Offense count: 15
+# Cop supports --auto-correct.
+Style/NumericLiterals:
+  MinDigits: 11
+
+# Offense count: 35
+# Cop supports --auto-correct.
+# Configuration parameters: PreferredDelimiters.
+Style/PercentLiteralDelimiters:
+  Enabled: false
+
+# Offense count: 3
+# Cop supports --auto-correct.
+Style/PerlBackrefs:
+  Enabled: false
+
+# Offense count: 12
+# Configuration parameters: NamePrefix, NamePrefixBlacklist.
+Style/PredicateName:
+  Enabled: false
+
+# Offense count: 2
+# Cop supports --auto-correct.
+Style/Proc:
+  Enabled: false
+
+# Offense count: 8
+# Configuration parameters: EnforcedStyle, SupportedStyles.
+Style/RaiseArgs:
+  Enabled: false
+
+# Offense count: 3
+# Cop supports --auto-correct.
+Style/RedundantBegin:
+  Enabled: false
+
+# Offense count: 1
+# Cop supports --auto-correct.
+# Configuration parameters: AllowMultipleReturnValues.
+Style/RedundantReturn:
+  Enabled: false
+
+# Offense count: 16
+# Cop supports --auto-correct.
+Style/RedundantSelf:
+  Enabled: false
+
+# Offense count: 44
+# Configuration parameters: MaxSlashes.
+Style/RegexpLiteral:
+  Enabled: false
+
+# Offense count: 7
+Style/RescueModifier:
+  Enabled: false
+
+# Offense count: 2
+# Cop supports --auto-correct.
+# Configuration parameters: AllowAsExpressionSeparator.
+Style/Semicolon:
+  Enabled: false
+
+# Offense count: 27
+# Cop supports --auto-correct.
+# Configuration parameters: EnforcedStyle, SupportedStyles.
+Style/SignalException:
+  Enabled: false
+
+# Offense count: 2
+# Cop supports --auto-correct.
+# Configuration parameters: AllowIfMethodIsEmpty.
+Style/SingleLineMethods:
+  Enabled: false
+
+# Offense count: 4
+# Cop supports --auto-correct.
+Style/SingleSpaceBeforeFirstArg:
+  Enabled: false
+
+# Offense count: 19
+# Cop supports --auto-correct.
+Style/SpaceAfterComma:
+  Enabled: false
+
+# Offense count: 1
+# Cop supports --auto-correct.
+Style/SpaceAfterControlKeyword:
+  Enabled: false
+
+# Offense count: 11
+# Cop supports --auto-correct.
+Style/SpaceAfterNot:
+  Enabled: false
+
+# Offense count: 5
+# Cop supports --auto-correct.
+# Configuration parameters: EnforcedStyle, SupportedStyles.
+Style/SpaceAroundEqualsInParameterDefault:
+  Enabled: false
+
+# Offense count: 11
+# Cop supports --auto-correct.
+Style/SpaceAroundOperators:
+  Enabled: false
+
+# Offense count: 86
+# Cop supports --auto-correct.
+# Configuration parameters: EnforcedStyle, SupportedStyles.
+Style/SpaceBeforeBlockBraces:
+  Enabled: false
+
+# Offense count: 2
+# Cop supports --auto-correct.
+Style/SpaceBeforeComma:
+  Enabled: false
+
+# Offense count: 55
+# Cop supports --auto-correct.
+# Configuration parameters: EnforcedStyle, SupportedStyles, EnforcedStyleForEmptyBraces, SpaceBeforeBlockParameters.
+Style/SpaceInsideBlockBraces:
+  Enabled: false
+
+# Offense count: 30
+# Cop supports --auto-correct.
+Style/SpaceInsideBrackets:
+  Enabled: false
+
+# Offense count: 192
+# Cop supports --auto-correct.
+# Configuration parameters: EnforcedStyle, EnforcedStyleForEmptyBraces, SupportedStyles.
+Style/SpaceInsideHashLiteralBraces:
+  Enabled: false
+
+# Offense count: 10
+# Cop supports --auto-correct.
+Style/SpaceInsideParens:
+  Enabled: false
+
+# Offense count: 1
+# Cop supports --auto-correct.
+Style/SpecialGlobalVars:
+  Enabled: false
+
+# Offense count: 2259
+# Cop supports --auto-correct.
+# Configuration parameters: EnforcedStyle, SupportedStyles.
+Style/StringLiterals:
+  Enabled: false
+
+# Offense count: 19
+# Cop supports --auto-correct.
+# Configuration parameters: EnforcedStyle, SupportedStyles.
+Style/StringLiteralsInInterpolation:
+  Enabled: false
+
+# Offense count: 2
+# Cop supports --auto-correct.
+# Configuration parameters: IgnoredMethods.
+Style/SymbolProc:
+  Enabled: false
+
+# Offense count: 9
+# Cop supports --auto-correct.
+# Configuration parameters: EnforcedStyle, SupportedStyles.
+Style/TrailingBlankLines:
+  Enabled: false
+
+# Offense count: 1
+# Cop supports --auto-correct.
+# Configuration parameters: EnforcedStyleForMultiline, SupportedStyles.
+Style/TrailingComma:
+  Enabled: false
+
+# Offense count: 4
+# Cop supports --auto-correct.
+Style/TrailingWhitespace:
+  Enabled: false
+
+# Offense count: 6
+# Cop supports --auto-correct.
+# Configuration parameters: ExactNameMatch, AllowPredicates, AllowDSLWriters, Whitelist.
+Style/TrivialAccessors:
+  Enabled: false
+
+# Offense count: 1
+Style/UnlessElse:
+  Enabled: false
+
+# Offense count: 2
+# Configuration parameters: EnforcedStyle, SupportedStyles.
+Style/VariableName:
+  Enabled: false
+
+# Offense count: 5
+# Cop supports --auto-correct.
+# Configuration parameters: WordRegex.
+Style/WordArray:
+  MinSize: 6

Gemfile

@@ -17,4 +17,5 @@ gem 'pry'
 group :development, :test do
 group :development, :test do
   gem 'mime-types', '~> 1.16'
   gem 'mime-types', '~> 1.16'
   gem 'builder'
   gem 'builder'
+  gem 'rubocop', require: false
 end
 end

gemfiles/3.2.gemfile

@@ -14,6 +14,7 @@ gem "paperclip", :path => "../"
 group :development, :test do
 group :development, :test do
   gem "mime-types", "~> 1.16"
   gem "mime-types", "~> 1.16"
   gem "builder"
   gem "builder"
+  gem "rubocop", :require => false
 end
 end
 
 
 gemspec :path => "../"
 gemspec :path => "../"

gemfiles/4.0.gemfile

@@ -14,6 +14,7 @@ gem "paperclip", :path => "../"
 group :development, :test do
 group :development, :test do
   gem "mime-types", "~> 1.16"
   gem "mime-types", "~> 1.16"
   gem "builder"
   gem "builder"
+  gem "rubocop", :require => false
 end
 end
 
 
 gemspec :path => "../"
 gemspec :path => "../"

gemfiles/4.1.gemfile

@@ -14,6 +14,7 @@ gem "paperclip", :path => "../"
 group :development, :test do
 group :development, :test do
   gem "mime-types", "~> 1.16"
   gem "mime-types", "~> 1.16"
   gem "builder"
   gem "builder"
+  gem "rubocop", :require => false
 end
 end
 
 
 gemspec :path => "../"
 gemspec :path => "../"

gemfiles/4.2.gemfile

@@ -14,6 +14,7 @@ gem "paperclip", :path => "../"
 group :development, :test do
 group :development, :test do
   gem "mime-types", "~> 1.16"
   gem "mime-types", "~> 1.16"
   gem "builder"
   gem "builder"
+  gem "rubocop", :require => false
 end
 end
 
 
 gemspec :path => "../"
 gemspec :path => "../"