- Add libgit2_1.patch for compatibility with libgit 1.1.0
- Update to v1.3.0
* New Repository.applies, Repository.revparse, Repository.revparse_ext,
Repository.add_submodule, Repository.raw_listall_branches, and
Repository.raw_listall_references
* New optional flags and file_flags arguments in
Repository.merge_commits and Repository.merge_trees
* New Reference.raw_target
* Allow bytes in Repository.lookup_branch and Repository.diff
* New GIT_BLAME_FIRST_PARENT and GIT_BLAME_USE_MAILMAP constants
* New IndexEntry supports repr(), str(), == and !=
* New Object supports repr()
* New accept tuples of strings (not only lists) in a number of places
* Fix compatibility with old macOS 10.9
* Fix check argument type in Repository.apply(...)
* Fix raise exception if error in Repository.listall_submodules()
* Fix a couple of refcount errors in OdbBackend.refresh() and
Worktree_is_prunable