Bump libgit2 to 276d9ea3a664b1c1a75a72a05744fd7fc078538e
0.21.1b1
Bump libgit2 to 9f57fd64436b6441684ce5e6641a0e390304224d
Implement Rugged::Blob::HashSignature
Merge pull request #423 from libgit2/vmg/hashsig

Blob Hash Signatures!
hashsig: Add signature generation options
v0.21.1b2
tell CMake to generate UNIX makefiles to avoid issues building on Windows with Visual Studio installed
Update the Gemfile.lock.
Merge pull request #424 from jweather/master

tell CMake to generate UNIX makefiles to avoid issues building on Window...
walker push range
Merge pull request #425 from skv-headless/walker_push_range

walker push range
Update the changelog with the latest Rugged changes and beta releases.
submodule: add submodule setup to test_helper
submodule: add submodule support

Closes #408.
Bump libgit2 to bd62dc6fdde123339844dc199a6c3b8ba0630afa
Make use of the new git_remote_fetch signature to clean up some code.
Merge pull request #428 from libgit2/arthur/remote-fetch-updates

Update `Remote#fetch` internals
Add `Repository#merge_bases`.

This returns an array containing all merge bases between one or
multiple commits.
Merge pull request #427 from libgit2/arthur/add-repository-merge-bases

Add `Repository#merge_bases`