Add src tarballs for dependencies

Add tarballs with source for some dependencies
we build ourselves instead of installing from
packages.

Change-Id: I59d69ceb048ef5d17f6198c7ad56388b94399353
Signed-off-by: Doug Hellmann <doug.hellmann@dreamhost.com>
Merge pull request #4 from dhellmann/add-src-tarballs

Add src tarballs for dependencies