Merge pull request #19 from scottferg/master

Fix template crash on pull requests in the repo dashboard
Fix link to commit's build page at user dashboard.
Merge pull request #22 from fudanchii/user-dashboard

Fix link to commit's build page at user dashboard.
semi-correctly display xterm control sequences
Merge remote-tracking branch 'origin/master'
for now,let's print the `docker build` output to the console for debugging
Don't prematurely exit updateGitHubStatus()
Defer updateGitHubStatus so that it reports errors that occur before the build begins