Need latest libgit2 for git2go
First hack at getting libgit2 and git2go involved
Make sure deplibs are installed for libgit2
zlib package name on ubuntu
Force apt-get to use ipv4 since travis-ci cannot do ipv6 yet
Try a different way of forcing ipv6 off
Oops, need to sudo
Need to support building inside the mockdir too
Try ubuntu-specific pkgconfig for libgit2
Fixes for git_test now that we have other content in it
Make the mock part work with git2go
Merge pull request #77 from nonspecialist/master

libgit2/git2go integration -- first steps: a working build that can be used as a basis for extending git functionality