Use -rac_description to prevent unwieldly backtraces
Revert use of -rac_description on RACExtensions
Use -rac_description to prevent unwieldly backtraces
Merge pull request #683 from ReactiveCocoa/sprinkle-rac_description-master

Use -rac_description on master
Revert most of ebae4a7a5f46e411a1843f6c095c0e9ea4bf5cd8.

Leaves only changes to UIActionSheet+RACSignalSupport.m
Merge branch 'master' into sprinkle-rac_description

Conflicts:
	ReactiveCocoaFramework/ReactiveCocoa/UIControl+RACSignalSupport.m
	ReactiveCocoaFramework/ReactiveCocoa/UIGestureRecognizer+RACSignalSupport.m
	ReactiveCocoaFramework/ReactiveCocoa/UITextField+RACSignalSupport.m
	ReactiveCocoaFramework/ReactiveCocoa/UITextView+RACSignalSupport.m
Merge pull request #684 from ReactiveCocoa/sprinkle-rac_description

Use -rac_description on 2.0-development (redux)