New languages

KR, CN, CN-M, JP
Revert "New languages"

This reverts commit a788a419f517b9a46371a2e9c4782b2080373c57.
Language Chinese

This is the translation into Chinese Simplified spoken on Mainland
China.
Changing language code
Merge remote-tracking branch 'origin/master' into spreed-speakfreely-chinese
Added Chinese languade code
Enabled Korean translation.
Merge branch 'master' into spreed-speakfreely-chinese

Conflicts:
	src/i18n/helpers/languages.py
Merge branch 'spreed-speakfreely-chinese' of https://github.com/cfrisemo/spreed-speakfreely
Added support for combined language codes.
Properly encode languages as JSON.
Force fullscreen styles.
Disabled text selection on various components.
Ignore strange char 2 received from data channel after connect.
No longer disconnect ongoing calls on websocket disconnnect or error. Instead resurrect state when id still is the same on successfull reconnect.
Upgrade bootstrap to 3.1.1.
Prepare for 0.17.1 release.
Fixed timeouts in case of disconnects.
Use sleepy as submodule from external source.
Fixed file download ending prematurely on slow connections.