Add sweet-alert library
Framework.js should throw an alert here, no need to do it again
Add the ability to override the confirm function
Implement "sweet alert" for ajax errors and confirmations
Style sweet alert so it matches the backend better
Fixes #595 - Native `alert` and `confirm` functions have been styled in the back-end.
zIndex should actually sit higher than modals
Unify the handling of detailed exception messages
Default value might be an array
Back-end user groups can now be marked to add new administrators by default
Streamline naming of backend user groups
Add description field to backend user group table
Make more room for group descriptions
* Build 169 :laughing: