The script now exits properly...
Show installed languages quickly, and even if offline.
Add english gettext for robustness; overridden from other language's gettext (and strings)
Merge pull request #1224 from ruimalheiro/startexit

The script now exits properly...
fix issue #1190: correct request.admin to request.is_admin
Central now needs gettext, since coach reports are localized.
Fix for #1205: improper default value
Generalize the splat handler, to work for phase 2 (and not just KA topic tree)
fix #1242: check first if subtitles dir exists
Merge branch 'release-0.11.1' of github.com:learningequality/ka-lite into big-ideas-demo

Conflicts:
	kalite/shared/i18n.py
Merge branch 'big-ideas-demo' of github.com:learningequality/ka-lite into big-ideas-demo
Adding support for translations in coach reports topic tree