Fix -deliverOn: space usage, asynchronous -scheduleRecursiveBlock:

Move NSButton.rac_command to NSControl, add rac_textSignal

Added folding methods and -[RACSignal executeCommand:]

Fix -toProperty:onObject: disposal

Threading bug fixes, new waiting methods, fixed -switchToLatest

Fix RACCommand crash on ARM, added -not, fixes to RACStringSequence

Initial stable API release

More warnings, iOS fixes, use rpath for framework linking

RACTupleUnpack(), crazy amounts of documentation

-bindTo: & +zip: bug fixes, disallow > 1 RAC()s to the same property

Add -[RACSequence objectEnumerator], KVO signal and misc. bug fixes

Autorelease RACDynamicSequence tails to prevent stack overflow

asMaybes > materialize, switch > switchToLatest, optimizations

Fix retain cycles, add -rac_sequence for NSEnumerator/RACTuple

Replace RACConnectableSignal, throttle/delay fixes, eager seqs

Disable TEST_AFTER_BUILD by default, set PUBLIC_HEADERS_FOLDER_PATH

Fix -concat retain cycle and +bufferWithTime: bug

+if:then:else:, remove RACAsyncCommand and RACCollection, fix -concat

Immediately forward +zip:reduce: errors, add +interval:withLeeway:

Turn protocols back into classes, fix lift retain cycle, misc. fixes