Update to 0.9.93

I'm pleased to announce the next beta version on the way to our first stable release. There will be at least one more beta because I need to rewrite some locking code in the dispatcher which requires a lot of testing. Except from that I am very pleased with the stability and progress so far. Thanks a lot to all testers and users of redports!

Infrastructure:

• Trac 0.12.3 update
• IRC buildbot is available in ​#redports-buildlog on freenode
• Support "Redports: Ignore" and "Redports: Urgent" tags in commit messages

redports-trac:

• Add Administration interfaces (Backends, Backendbuilds, Buildgroups, Repository, Buildqueue)
• RSS feed for Archive and Archivedetails
• Add global buildqueue list
• Add build priority to GUI and allow users to choose priority
• Improve buildqueue deletion so that it can be deleted anytime
• Add links to User wiki page wherever the username is shown
• Add Icons for buildlog and workdir
• Improve build description formatting

rpdd:

• Implemented rpdd hook scripts
• Improve Step20 to gracefully handle failed locks
• Fix long standing bug in Step30 backend failure handling