Support auto-correction in WordArray.

Part of solution for #743.
Merge pull request #766 from jonas054/autocorrect_word_array

Support auto-correction in WordArray
Support mocked file paths in the spec helper's parse_source
Support for requires and generic options from rake tasks
Lazy load as much as possible
Rake task now supports `requires` and `options`
Merge pull request #767 from nevir/spec-file-helper

Support mocked file paths in the spec helper's parse_source
Merge pull request #768 from nevir/rake-requires

Rake task now supports `requires` and `options`
Don't double-append options :(
Merge pull request #770 from nevir/bugfix-for-768

Bugfix for #768
[Fix #761] Relax required json version to >= 1.7.7
[#743] Implement auto-correct for Proc cop
Excludes/includes support globs relative to the project (PWD for now).
[Fix #759] New cop EndLineConcatenation
Correct offences found by EndLineConcatenation
[#743] Implement auto-correct for AccessModifierIndentation cop
Merge pull request #773 from jonas054/autocorrect_access_modifier_indentation

Implement auto-correct for AccessModifierIndentation cop
Change link to issue page to correctly point to rubocop's
Merge pull request #775 from scottmatthewman/fix_link_in_CONTRIBUTING_md

Correctly point to rubocop's issues page in contributor guidelines
Merge pull request #769 from nevir/relative-globs

Excludes/includes support globs relative to the project (PWD for now).