[CI, Kinetic] Update Travis config to run on Ubuntu 14.04.
[CI, Kinetic] Update Travis config to run on Ubuntu 14.04.

v4hn/moveit,ros-planning/moveit,davetcoleman/moveit,davetcoleman/moveit,ros-planning/moveit,v4hn/moveit,v4hn/moveit,davetcoleman/moveit,v4hn/moveit,davetcoleman/moveit,ros-planning/moveit,ros-planning/moveit,ros-planning/moveit