This has become more useful with the kinetic branch, because it has several significant dependencies that we can't release to the general ROS package repository.

The build time has gotten high for the segbot_v2 laptops, and there are problems running Travis CI (#53, utexas-bwi/segbot#98) that might be load-related. Some of that can be addressed by using catkin tools to whitelist or blacklist certain packages for specific purposes. But a custom binary package repository still looks like a good idea.