Possible fix for newly reported docking issues
Added System.Core to csproj files so that monodevelop detects System.Linq when we use it.
Merge pull request #437 from ryannathans/master

Added System.Core to csproj files
Clumsily fixes #352
- fix for #443 and solution for #439
Merge pull request #445 from RockyTV/RockyTV-master

- fix for #443 and solution for #439
Make noise about new /set help command at startup time
Add admin-configurable database backup interval, update database optimization to work properly with active players, add admin-configurable max dirty backups before optimization automatically takes place