fix #144: user CSS is HTML safe
fixing user highlighting
use same font size for blockquotes as in parent element
bundle update
fix: correct logic for edit

return only if open? is false
bundle update
feat: show thread tree in nested view as well

Fixes #146
fix: use correct indentation
feat: highlight messages with an active open or close vote

Fixes #142
fix: only respect `no-answer-admin` when it is set

return true if flags["no-answer-admin"] != 'yes' was always true due to
nil != 'yes'
fix: code formatting cleanup
feat: every notification has now its own deletion configuration

Fixes #66
feat: now notifications may be marked as unread

Fixes #150
fix: fixed a typo
bundle update
feat: new framework for sortable tables

To be able to implement #137
feat: now most tables are sortable

Only those tables not sortable by technical reasons are left out.
Fixes #137
fix: some localizations
feat: now all users have the ability to choose between different CSS styles

Fixes #82
feat: implemented motds