Quite a few changes here.

Added in generic 'blink' programs in the examples in C, RTB and Shell.
Updated wiringPi with a little big-file on the millis() function and
added in a new micros() function too.
Updated the examples with standard LGPL headers.
Added a new isr-osc.c test program - just for ISR timing purposes.

gpio/Makefile

@@ -70,8 +70,8 @@ install:
 .PHONEY:	uninstall
 uninstall:
 	@echo "[UnInstall]"
-	rm -f /usr/local/bin/gpio
-	rm -f /usr/local/man/man1/gpio.1
+	@rm -f /usr/local/bin/gpio
+	@rm -f /usr/local/man/man1/gpio.1
 
 .PHONEY:	depend
 depend: