rename 'version' to 'minversion' for versioned syncing
adding a command-line utility for executing common testing functions
missing delete function on config.
Merge branch 'develop' of github.com:learningequality/ka-lite into rename_to_minversion

Conflicts:
	kalite/utils/general.py
new katest management command "clean_db"
preventing central-server regret
refactor confirm logic in katest clean_db
Merge remote-tracking branch 'gimick/katest_tool' into katest_tool

Conflicts:
	kalite/management/commands/katest.py
Don't allow people to be invited to headless zones, nor to create any.
ignore validation errors in UserLog; they can't be handled.
organizations mail validation
organizations mail validation
message update
Merge branch 'develop' of github.com:learningequality/ka-lite into rename_to_minversion
Merge pull request #332 from bcipolli/ignore_userlog_errors

ignore validation errors in UserLog
@rtibbles No queries, so no need to wait?
Hooked up already existing text box
add hide options
The error messages will be red now.
Merge pull request #338 from ruimalheiro/illegalemail

organizations mail validation
Super cool, works great, and so simple!
don't show 'struggling' in key when showing videos.