Add option to fog settings to specify force task reboot from gui.  Not usable quite yet and will probably break current client system.  Only use if this isn't needed yet or if you're willing to go with a broken client in this regard.

git-svn-id: https://svn.code.sf.net/p/freeghost/code/trunk@2144 71f96598-fa45-0410-b640-bcd6f8691b32
Merge svn with master