ADD relative date to search results
REDUCE tags font size
FIX keyboard shortcuts
FIX mark modal input clearing on ctrl-a
ALTER add-mark to update the count in sidebar
ADD tags table
FIX tag column name
ADD tag table updating
ADD tags to sidebar
OMIT 'nosave', 'resave' tags from sidebar
REFRESH sidebar data after search/writes
AUTO-REPLACE comma with space in tags
FIX double-encoding of fetched page titles
ALTER modal-based uri lookup to detect preexisting marks
UNIFY tag color and click handling
UPGRADE HTMLPurifier to 4.4.0
REMOVE default HTML.Allowed; built-in null default OK
ENABLE phpunit color output
RESTORE HTML.Allowed value in HTML Purifier config

Omission of the key does not cause it to fall back on an equvialent
none-allowed behavior. Adding back a '' value to restore that behavior.
FIX undefined var