Merge pull request #2280 from learningequality/nalanda-rct2

Nalanda rct2 to nalanda
Merge pull request #2304 from learningequality/nalanda-prerelease

Nalanda prerelease into release
Merge pull request #2319 from learningequality/nalanda-prerelease

Releasing recent Nalanda fixes
Merge branch 'nalanda-rct2' into nalanda-prerelease
Merge branch 'nalanda-prerelease' into nalanda
Merge pull request #2341 from learningequality/nalanda-rct2

Release Nalanda RCT2 updates
Merge pull request #2342 from learningequality/nalanda-prerelease

Nalanda prerelease
Merge pull request #2412 from learningequality/nalanda-rct2

Nalanda rct2 to nalanda rct3
create add_new_playlists management command
append the new playlists to the old playlists file
linting
add the new test jsons
Disable input box autocomplete on signup and login forms.
Merge pull request #2500 from jamalex/2495

Fixes 2495: Disable input box autocomplete on signup and login forms.