[api] Enable commenting projects and packages through API
[dist] add possible required line for apache 2.4
[backend] do not escape product(..) provides
[backend] always fill the remotemap with the entries from the kiwi path
[api] move request state change permission check to model
[api] split up global request permission handling
[backend] add --republish-repository option to obs_admin
[backend] improve error message on key removal
[api] move request permission check code to right class
[webui] Get rid of deprecated link_to_function
[backend] make sure not to replace a good remote project entry with a proto

This should fix issues with pacman obs instance.
[webui] Add OBS specific markup to the markdown processor
[api][webui] move more request handling code into api model
[webui] do not allow to create submit requests in webui anymore when sources are unchanged
[api] do not accept new requests with foreign persons anymore

In the past we just reset the request creator to the logged-in
user, now we throw an error.

Just admins can still put request for other people
[webui] Refactor the revision view, test it
[backend] tweak ordering algorithm for the full tree so that it does not break out maintenance updates
[api] do not take over devel package data via submit actions for new packages
[api][webui] fix issue tracker url and regexp code

Fix places in webui where issue trackers url, regexps and logic are
hardcoded instead of using the issue tracker model
(would break if an admin is reconfiguring the data otherwise)

Run over all issue trackers for markdown now as well
[webui] take care of issue labels in markdown expansion