* [feature] User sign-up form and admin notifs
* add chosen + filtered languages to migration
* remove stray comment
* chosen languages schmosen schmanguages
* proper error on local account missing
* [feature] User-selectable preset themes
* docs, more theme stuff
* lint, tests
* fix css name
* correct some little issues
* add another theme
* fix poll background
* okay last theme i swear
* make retrieval of apimodel themes more conventional
* preallocate stylesheet slices
tobi