Moving apps we modified heavily into the kalite folder
Warn user if no videos are available for that language.
Clear the "Loading topic tree" text and be more apologetic in language
Tweak apology language some more, avoid inserting raw html tags
do not clobber other get parameters when changing the users language
remove unused js CHANGE_*LANGUAGE_URL variables
fix the set_user_language get parameter
Moving i18n shared code into __init__.py instead.
Updating .gitignore to ignore partially downloaded dubbed videos.
remove outdated call to CHANGE_SERVER_LANGUAGE
add zip download size when upgrading
Merge pull request #1521 from aronasorman/1494

Show download zip size when upgrading.
Merge pull request #1519 from bcipolli/shared-refactor

Moving i18n shared code into __init__.py instead.
Merge branch 'develop' into userlist_fix_api

Conflicts:
	kalite/main/views.py
	kalite/updates/views.py