Make searches with many matches exponentially faster
Don’t construct a new `GTOID` every time the .sha is requested from a PBGitCommit
Update change log
Replace weird code that triggers a warning with a functional equivalent
Break responder loop that crashes on OS X 10.10 Yosamite
Add OS X 10.10 fix to the change log
fixed typos in firstResponder methods
set the Base SDK to 10.9 to work around a crash

This fixes the crash in #397 without introducing the regression in #402.