Ensure english language pack upon migration.
changing version to 0.10.3
Fixes css issue in #1209
Call code to move subtitles from old location to new, from setup / update
Permissions check on org invitations, plus test cases.
Test fixes #1
finishing test cleanup
sort available language packs
Merge branch 'release-0.10.3' of github.com:learningequality/ka-lite into move_old_subtitles
fixing i18n imports that were breaking setup command
Small bug in picking up default language.
Merge pull request #1256 from bcipolli/move_old_subtitles

Call code to move subtitles from old location to new, from setup / update
Merge pull request #1259 from bcipolli/119

Permissions check on org invitations, plus test cases.
Merge branch 'develop' of github.com:learningequality/ka-lite into 1244
tweaks to po file filtering