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

Updates for Xdacted
Add -throttle:valuesPassingTest:
Refactor -throttle: to use -throttle:valuesPassingTest:
Fix buffered nexts getting resent after completion
Merge pull request #600 from ReactiveCocoa/throttle-values-passing-test

Added -throttle:valuesPassingTest: