Intermittent Travis Acceptance Test Failures

[jantman]

Around the time this issue was opened (just after TravisCI built 45) I was seeing a lot of intermittent acceptance test failures, where one of the selenium.get() calls would run forever. I fixed this by putting a timeout both on selenium calls, and on each test.

If this happens again, look into running Travis builds locally using their docs on running their Docker containers and travis-build.

[jantman]

This seems to be fixed; Travis builds 51-58 aren't having those problems.