Add rubocop for syntax check
Fix collection method
Fix constant names
Remove duplicity
Hash#has_key? is deprecated in favor of Hash#key?
Remove extra empty lines
EmptyLiteral fix
EmptyLiteral fixes
Fix test
Remove trailing whitespace
Fix string literals
Use only new 1.9 hash syntax
Remove unused overrides
Fix word array
Fix special global vars
Remove ext folder from rubocop check
Fixed CHILD_STATUS
MethodDefParentheses, NegatedIf, PercentLiteralDelimiters, RedundantReturn, RedundantSelf, SignalException fixes
Fix VariableName
IfUnlessModifier fix