Added test for intermediate nil values triggering ignoring an update that never happens.
Added NSString(RACKeyPathUtilities).
Fix update being applied to key paths when there are nil intermediate values.
Merge branch 'master' into racobservablepropertysubject-fix-keypath
added +schedulerWithQueue:name:
tests
better docs
Merge pull request #478 from ReactiveCocoa/queue-scheduler

Added +schedulerWithQueue:name:
Add UIGestureRecognizer -rac_gestureSignal
Add RACEventTrampoline -trampolineForGestureRecognizer:
Sort that UIKit group
Set UIGestureRecognizer+RACSignalSupport header public
blank lines
Add UIGestureRecognizer+RACSignalSupport to framework header
Merge pull request #479 from kkazuo/supports-nsrange

supports NSRange value
Instead of rewriting NSAsserts, cause compiler errors
NS(Parameter)?Assert -> NSC(Parameter)?Assert
Merge pull request #481 from ReactiveCocoa/assertion-refactoring

Replace all NSAssert/NSParameterAssert with NSCAssert/NSCParameterAssert
Add rac prefix to category methods and nicer comments.
Merge pull request #470 from ReactiveCocoa/racobservablepropertysubject-fix-keypath

RACObservablePropertySubject tries to update key path with nil intermediate values and fails.