Added FLUKE_ARM to conf to make interrupts work in emulator.  This is a temporary fix that will probably be around forever
Fixed uart from randomly stopping

The driver for the pl011 uart was never signaling the output semaphore(uartprt->osema) which cause the threads to eventually lock up and stopping outputing/recieving any data.  Adding in the signaln calls seems to have fixed this
Merge pull request #10 from 36Chambers/uart-fix

Fixed uart from randomly stopping
Merge remote-tracking branch 'origin/pi-hw2' into usb
Revert "Quick hacks to enable testsuite and ethloop"

This reverts commit 794758090615fa46a961b50416a6e57b5623cabe.

Conflicts:
	compile/platforms/raspberry-pi/xinu.conf
Misc fixes to usbinit.c and usb_hub.c