- make the correct button appear in appview (be a maintainer/stop to be a maintainer)
- make the list of maintained applications reappear on the left menu
- removed appIdToName($appId) and versionIdToName($appId) from category.php
- replaced every occurence of appIdToName and versionIdToName with lookup_app_name and lookup_version_name
- fix some code errors and typos (missing $ in front of variable names
and so on)
- fixed a lot of warnings that would have been thrown when error_reporting
is set to show notices (if(isset($variable))) instead of if($variable) for
example)