width: 100% is already part of the class.
Remove duplicate classes .table/.striped and exclusivly use the more common one.
Add this class to PostReportReasons/Help, which were missing it.
- Use a helper function to add it to every title (except the root path
which is just the app_name)
- Remove useless set_title function in application_controllerller
Mark all tag <input>s with a `data-autocomplete` attribute, instead of
hardcoding a list of html IDs to autocomplete in javascript.
This way should be less error prone. It fixes autocomplete in several places:
* Autocomplete for the search box on /posts didn't work in the
responsive layout. This was because /posts has two search boxes that
both have the id `tags`: one in the normal sidebar, and one in the
responsive tag list. $("#tags") only initialized autocomplete on the
first one.
* Autocomplete didn't work on the aliases or implications pages. This
was due to selecting the wrong html ids.
