Add a simple "QString readTextFile(QString filepath)" function to libpcbsd-utils
Completely overhaul the pc-systemupdatertray.
Now it runs *much* smoother without any timers constantly running or notifications constantly popping up. It also understands the new update system and distinguishes between OS updates, security updates, package update, jail updates, current update processes, and uses syscache for it's backend.
Merge branch 'master' of github.com:pcbsd/pcbsd