Cleaning autogenerated stuff
Partial: preparing a rescan command that will reindex individual messages
1st draft of new tag metadata
Augment tag/list to allow filtering by tag attributes
PEP8
Tweaking tag/list, bugfixes
Sort keys in JSON output
Fixing broken doctests in util.py, broken test order in Makefile
Unbreak the tag/list command
Make the blank tag invisible by default
Adding details about the query to tag/list results
tag search_terms attribute works