Point directly at github for the source0 uris.

The build system will never try to talk to github though.

Signed-off-by: Jon Ludlam <jonathan.ludlam@eu.citrix.com>
Add the github branch to the github url

Signed-off-by: Jon Ludlam <jonathan.ludlam@eu.citrix.com>
Merge pull request #34 from jonludlam/githubize-source0s

Githubize source0s