fix travis badge
Merge pull request #64 from tbarker9comcast/fix-travis-link

fix travis badge
Disable parallel testing

We've seen some spurious failures from FullSystemITest on Travis. This
kind of thing has generally been tied to really underpowered hardware
running what ends up being a fairly distributed application. In any
case, we think making sure that no other tests are running at the same
time might be helpful.
Merge pull request #67 from clinedome-work/disable-parallel-testing

Disable parallel testing