RuboCop: update configuration
Bundle: use simplecov 0.9
RuboCop: autocorrect
Rake: fix rubocop task
Bundle: update
Rake: fix rubocop task / 2
RuboCop: fix last item coma
Rake: don't run rubocop on 1.8.7
Syntax: fix for Ruby 1.8.7
[Base] Add method to check if head strategy is supported

Closes #12
[Changelog]
[Lib] Fix $CHILD_STATUS on Ruby 1.8.7

Closes #28
Closes CocoaPods/CocoaPods#2225
[HTTP] Use fixtures