Merge pull request #12 from jefffohl/master

Adds a popover feature showing additional information for each build in travis_builds monitor.
Added milestone to PR report.

Fixes #14.
Merge pull request #15 from rhyolight/pr-milestones

Added milestone to PR report.
Added overall status report.

Fixes #16
Merge pull request #17 from rhyolight/overall-status

Added overall status report.
PR monitor refresh rate updated to 5m.

This call is made a lot, and results in some rate limiting on the part of the Github API. Decreasing it because of that. It's not something that needs to be constantly updated anyway.
Merge pull request #18 from rhyolight/decrease-pr-refresh-rate

PR monitor refresh rate updated to 5m.
Merge remote-tracking branch 'upstream/master'

Conflicts:
	client/js/monitors/pr_report.html
	client/js/monitors/pr_report.js
	config/default.yaml