Replace shared scheme copy Travis step with `rake test:prepare` task for easier out of the box execution of tests
Set buildImplicitDependencies="NO" in OS X shared scheme
Merge branch 'feature/test-prepare-task' of https://github.com/blakewatters/AFNetworking into blakewatters-feature/test-prepare-task

Conflicts:
	Rakefile
Remove use of object subscripting
Updating Podfile.lock
Minor formatting