[Gemfile] Added Tailor gem
[Rakefile] Added default config for Tailor
[Rakefile] Added Tailor tasks
[Tailor] Tune configuration
[Rakefile] Tailor requires Ruby > 1.9.3
Fix code style
[Tailor] Improve settings
[Bundle] Update
[Rakefile] Minor fixes
[Specification::Set] Improve required_by_logic
[Bundle] Restore compatiblity with Ruby 1.8.7
Switched to RuboCop for code style checking
Complete migration to Rubocop
Fixed code style
Merge branch 'feature-tailor'

* feature-tailor:
  Fixed code style
  Complete migration to Rubocop
  Switched to RuboCop for code style checking
  [Bundle] Restore compatiblity with Ruby 1.8.7
  [Specification::Set] Improve required_by_logic
  [Rakefile] Minor fixes
  [Bundle] Update
  [Tailor] Improve settings
  Fix code style
  [Rakefile] Tailor requires Ruby > 1.9.3
  [Tailor] Tune configuration
  [Rakefile] Added Tailor tasks
  [Rakefile] Added default config for Tailor
  [Gemfile] Added Tailor gem

Conflicts:
	lib/cocoapods-core/specification/linter.rb