* Added a new category
* Add deletion support to batch tag updater
* Bug fixes

Catches a common pitfall when attempting a new installation of Gazelle

This includes complying with standards that allow mobile browsers to
create a pseudo-app out of the site, complete with homescreen icon,
splash-screen, and a minimal browser-less UI

Comes with a feature removal that needed to be taken care of

Adds support for Firefox

Also create seperate account security options page

This commit requires a new database table

These features only have any value if users actually use them, and
experience has shown that nowhere near enough users use them to make
them worthwhile.