New unrestricted-system-ui!

Features:
* Safe mode, when sysuid segfaults or aborts, it restarts in safe mode (all plugins except stock disabled), this gives you a chance to fix/remove whatever you had installed (killall -11 sysuid to test, for fun)

* Merged arcean's LED support, install control panel applet using apt-get install duicontrolpanel-ledapplet.

To upgrade, reinstall using instructions in the wiki, just rm system-ui* before running any wget commands.