Migrate shared components into a new folder.

Using a nice little trick from http://stackoverflow.com/questions/3385187/settingup-xcode-project-to-add-new-file-in-custom-directory/21440968#21440968
Link RACTestTests with Cocoapods (to get RAC support)
Add the first test for RACTest
Remove debug log
Variable renaming
Add a test I actually don't expect to pass, but it does.