Helps if we actually connect the connectable subscribable.
Add cancellable support to NSTask.
Add i386 to VALID_ARCHS on ReactiveCocoa-iOS target.
toSubscribable => rac_toSubscribable
better comment for RACCancelableSubscribable
NSTask should return a cancelable subscribable
add -asCancelable
don't send completed, that's crazy
Merge branch 'master' of github.com:github/ReactiveCocoa
Merge pull request #6 from akiland/master

Add i386 to the VALID_ARCH list.
Merge remote-tracking branch 'github/master'

Conflicts:
	ReactiveCocoaFramework/ReactiveCocoa.xcodeproj/project.pbxproj
don't send any messages if the task was canceled
Merge branch 'master' of github.com:github/ReactiveCocoa
Merge remote-tracking branch 'github/master' into uitextview-subscribable
run the task asynchronously on the main queue
Merge pull request #5 from codykrieger/uitextview-subscribable

Add rac_textSubscribable support to UITextView
perform the block immediately if we're already on the main queue
added -addObjectsFromArray:
Merge branch 'master' of github.com:github/ReactiveCocoa
make Xcode 4.4 happy