Use schemas to validate driver output 

Merge pull request #1979 from metabase/Rindfleischetikettierungsueberwachungsaufgabenuebertragungsge

die Listenelemente entfallen lange Wörter jetzt

Validate metadata combos

update a couple links that target _blank so that they don't do that from within the Mac app.

More accurate description of raw data behavior

don't provide an option in the special-type dropdown for timestamp_* conversions if the field base type is not numeric.

apply a check for `valid-metadata?` when updating the attributes of a Field so that we can prevent invalid metadata configurations (#824)

when deleting a card make sure it exists first, otherwise throw a 404.

remove unecessary flex declarations and min-height from modals

prevent users from entering in empty table/field names.

explicit th text alignment

Prevent resizing/moving cards from causing body to scroll horizontally. Constrain resize to 1x1 cell

Specify charset=utf-8 for CSV downloads 

Atomic breakout widget

no need to set :pk?, :special-type, and :preview-display values when they are just the defaults anyways.