## Overview
Implement T809 and a completed categories system in #writefreely.
## Fix
This fixes the following WriteFreely issues:
* [#219 Only hashtags with English/ASCII names are supported](https://github.com/writefreely/writefreely/issues/219)
* [#335 Tag links to wrong location](https://github.com/writefreely/writefreely/issues/335)
* [#614 Browsing via a HashTag Link throws 404 error.](https://github.com/writefreely/writefreely/issues/614)
* [#615 Hashtag bug](https://github.com/writefreely/writefreely/issues/615)