- Fix tor the "undefined symbol: git_index_get in Unknown on line 0" error for the php module
Updated libgit2 reference to 0.19.0
Ported library to libgit 0.19.0
Merge pull request #45 from workstars/develop

Fix issue with old libgit2 API calls causing the PHP extension to not load on compilation
Merge pull request #53 from christopherobin/feature/v0.19.0

Ported library to libgit 0.19