Remove pre-1.0 RACCommand deprecations
Merge pull request #529 from ReactiveCocoa/remove-command-deprecations

Remove pre-1.0 RACCommand deprecations
-addDeferedSignal: > -addActionBlock:
Merge branch '2.0-development' into catch-command-errors

Conflicts:
	ReactiveCocoaFramework/ReactiveCocoa/RACCommand.h
	ReactiveCocoaFramework/ReactiveCocoa/RACCommand.m