fixed chat window text chat input had gap under it
fixed local video flickering before receiving stream

videoElement.onplaying event listener being used, sometimes a short lag
may be still seen, though it's been very occasional in my tests.
fixed text history extends under remote video slightly
Don't display the signin button until we've finished loading the page.
Merge pull request #224 from n1k0/fix-chat-window-chat-input-gap

Fixed chat window text chat input had gap under it
Merge pull request #227 from n1k0/fix-text-history-height

Fixed text history extends under remote video slightly
local video element displayed for video calls only
Merge pull request #225 from n1k0/fix-local-video-flickering

fixed local video flickering before receiving stream
Fix typo
Merge pull request #228 from Standard8/signin_stable

Don't display the signin button until we've finished loading the page.
Try to fix an intermittent failure in signing in by waiting until we've loaded the page before adding cookies
Merge pull request #230 from Standard8/fix_signout_intermittent

Try to fix an intermittent failure in signing in by waiting until we've loaded the page before adding cookies
Merge branch 'master' into production