added stash command
better formatting
Bump to libgit2/libgit2#1588
Adds GTTreeBuilder & tests
Recommended fix ups, additional documentation
Merge remote-tracking branch 'origin/master' into pr/165
Spaces -> tabs
Documentation fixup
Test style fixup
Implementation style fixup
Merge branch 'pr/165' (pull request #165)
Import GTTreeBuilder.h into ObjectiveGit.h
Copy static library headers to previous location
Import GTTreeEntry.h into ObjectiveGit.h
Merge pull request #167 from randomsequence/missingheader

Import GTTreeBuilder.h into ObjectiveGit.h
++libgit2
Minor fixes for breaking libgit2 changes
Modernize GTEnumerator and its call points
Ignore unzipped fixture repositories
Move all "contants" into GHTestCase

Leaving them as functions for now, but they should eventually become
methods on the test case class.