v0.6.10

Travis badge (#135)

Summary:
Adds travis badge
Closes https://github.com/facebook/Sonar/pull/135

Reviewed By: danielbuechele

Differential Revision: D8732766

Pulled By: priteshrnandgaonkar

fbshipit-source-id: 51ba49b0382f9bef88f297d061e30c862b751cd1

v0.6.9

update version