Start straightening up rev list
Manage Xcode schemes for Debug and Release, not just ‘GitX’
Remove unused variable
Merge branch 'master' into revlist

Conflicts:
	Classes/git/PBGitRevList.mm
Add HEAD to the `allBranchesRevSpec`
When given a bare name for branch enumeration, try to resolve it to a commit
Show detached HEAD on the ‘local’ history view, also
Merge branch 'revlist'
Add changes to revlist for detached HEAD to the change log

Closes #189