bump libgit2 to c6d7d8
bump libgit2 to ad0037
bump libgit2 to 6950dc
merge-base returns garbage on baseless merge_base.
Return nil on no merge-base.
Merge pull request #168 from spraints/baseless_merge_base

Baseless merge base
bump libgit2 to e953c1
bump libgit2 to 5b229e
bump libgit2 to f16fb0
bump libgit2 to a5f613
add ruby 2.0.0 to travis config
Merge pull request #170 from nvloff/ruby_2_travis

add ruby 2.0.0 to travis config
friendlier repo.init_at API

is_bare is now optional and defaults to false, same as git init. It's also
parsed as normal Ruby truthy value instead of type checked for True
or False, so more readable calls like this can be made

   Rugged::Repository.init_at('~/repository', :bare)
bump libgit2 to 15a63e
bump libgit2 to 677dce
bump libgit2 to 50eb85
bump libgit2 to 5b27bf
bump libgit2 to 7dbf40
Remove unexisting command repo.hash.
s/rugged/repo in Rugged::Commit section.