Show bytes sent/received in UI
Added comments and renamed timer variable
Merge remote-tracking branch 'origin/dev' into lucyhe-show_bytes_in_polymer

Conflicts:
	src/generic_ui/polymer/instance.html
Updated remote-instance test

- in order to reflect changes to SocksToRtc and RemoteInstance
Merge remote-tracking branch 'origin/dev' into lucyhe-show_bytes_in_polymer
Add updateBytesInUI method; small fixes

- only show bytes transferred when proxying
Reset bytes when proxying stops
Merge pull request #400 from uProxy/lucyhe-show_bytes_in_polymer

Show bytes sent and received in polymer