Change Details

## Overview Implement T809 and a completed categories system in #writefreely.

## 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)

## 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)