fix the setting of queries from the data reference useful questions list, which was not updating the QB properly.

Fix unpublished ansi-styles dependency ಠ_ಠ

Metabot documentation

Dashboard documentation updates

0.16 instrumentation

fix the setting of queries from the data reference useful questions list, which was not updating the QB properly.

fix for allowing special_type to be unset on a field.  plus unit tests.

Add bottom padding on delete modal

Fix caching issue with Angular partial

Fix nullpointer

fix link to users-guide

add a try/catch block to the code which introspects a Mongo collection so that if an unexpected exception is thrown we can catch it and have a nice stack trace while not affecting the sync of other collections.

Card error cleanup

Disable dragging dashcards when not in edit mode on mobile.

Resolves #2212

style tweaks.

add migration to fix any dashboard cards with NULL :row or :col values.

make sure we have a default value for `metabot-enabled`