Issue 1422 Delete language button
 Issue 1422 Delete language button
 Issue 1422 Delete Language Button
Merge remote-tracking branch 'upstream/develop' into issue1422-local

Conflicts:
	kalite/templates/updates/update_languages.html
 Resolved Merge Conflict
Reinstate styling, pagination in user management.
List Last Name first on User management reports
Conflicts Resolving
Merge remote-tracking branch 'upstream/develop' into issue1422-local
 Cleared the webcache on Delete and also made suggested modifications
 Updated Error Handling in api_views.py
 little more update in error handling
 little more update in error-handling
Conlict Resolve
Merge remote-tracking branch 'upstream/develop' into issue1422-local
Merge remote-tracking branch 'upstream/develop' into issue1422-local
 Refresh functions moved inside
Merge branch 'issue1422-local' of https://github.com/anuragkanungo/ka-lite into issue1422-local
 Delete Subtitle Functionality for English Button and Test Cases moved to i18n
Merge branch 'develop' of https://github.com/learningequality/ka-lite into issue1422-local
Fixed double messages issue.
 Tests updated but need modification, commit just to get guidance