* Add a TagListField which automatically validates its input against the
TagInformation database, and has a richer .selected_tags() method
* Add a dynamic tag input widget, available through a macro (*import
with context*), that supports both JS and non-JS input
* Add a TagInformation.all_tags() function
* Add colored tag display to all themes
* Fix a bug causing programs to have no names
* Add tags: games.action, games.narrative, courses.informatics
[MASTER] Run the 'update-tags' command of master.py.
Adds the tagging system, with 3 types of tags:
* Calculator models grouped by compatibility classes
* Programming languages
* Game, tools, and course categories
[MIGRATION] This commit contains a new version of the schema.
[BREAKS] This commit breaks existing tag assignments.
[MASTER] Run the 'update-tags' command of master.py.
Lephe