adding travis build config
disabling cpu affinity tests with the CI environment variable is defined, workaround for #11
Merge pull request #12 from jhu-lcsr-forks/disable-affinity-test-on-ci

disabling cpu affinity tests with the CI environment variable is defined
Merge branch 'catkin' of github.com:jhu-lcsr-forks/rtt into catkin
disabling more tests which don't work on CI
Merge branch 'catkin' into repair