Perf and info box tweaks

- Don’t send TCP candidates (useless)
- Show ICE connect time
- Calculate setup time more accurately
- Make stats display more compact (less whitespace)
Make presubmit happy
More presubmit fixes
Remove unneeded line
Rework timing calculation to use events
More linting, blarg
Undo incorrect fix
Made it possible to write AppRTC python unit tests.
Made travis not download stuff unnecessarily.
Merge pull request #238 from phoglund/python_apprtc_tests

Made it possible to write AppRTC python unit tests.
Merge pull request #235 from GoogleChrome/apprtc-fast2

Perf and info box tweaks
Fixed the order of polymer deps in preparation for #229
Merge pull request #242 from GoogleChrome/fixPolymerDependencyOrder

Fixed the order and to uppercase of polymer deps in preparation for #229
Merge remote-tracking branch 'upstream/master'
Will fix the google-appengine in the other patch.