updates for Xdacted
++specta + expecta
bumps
more bumps
Merge pull request #589 from ReactiveCocoa/update-xcode

Updates for Xdacted
Merge branch 'master' into racobservablepropertysubject-custom-keypath-handling
Remove unnecessary disposal removal.
Fixed some style issues in the tests.
Added test for willChangeBlock and didChangeBlock being called in the right order.