Fix permissions graph behavior with empty schemas

Fix test failures from #4147 

Use our new Toucan library 

* Add autocomplete to SelectPicker and CategoryWidget

* Don't show search box if less than 5 options

Also: Just slice the options if there's no regex available instead of looping
over each item with an `if` statement.

* Update constants based off discussions

300 for the max fields saved should be conservative enough to not break anyone's
setup, for more candidates we'll want to do something more intelligent (like
real time querying).

If there are less than 10 candidates, then don't show the typing menu at all

specific version numbers and replace with the latest version in the w…

Better support for non-English characters in slugs

Don't blast people with follow-up emails 

Commit filter when the enter key is pressed

Add some debugging logging for random test failures

Merge 0.22.1 to master

Ensure choropleths use the correct column for computing the scale

CI fail fast

update to 0.22.1

Ensure we use mbqlEq when comparing 'time-interval' MBQL clauses

Fix loading of questions which user has collection but not data permissions

Merge 0.22.1 into master