- suggest package group "Productivity/Other"

- update manual page

- fixed .spec file to handle spec file wizard files
- updated obs-server.changes to current state

it to the webclient.
Currently, it can only create a simple spec file after asking a few questions.

* add api docu for this switch

- don't try to create a branch package when it already exists (#394646)
- when branching, respect develproject settings per default
- when branching, develproject can be overridden by adding a "nodevelproject" query parameter

- exchanged dpkg package by deb package provided by newer SUSE Distros

- new oem-recovery element

- added kiwirevision and id attributes to <image> tag

- fix element special case

- check validity of roles for new users in projects

  tags named in the schema