- UART implemented and working.
- printf not working, so it´s been replaced with ConsoleUtilsPrintf
- Interrupts partially implemented

	modified:   ../../boards/beaglebone/board.c
	modified:   ../../boards/beaglebone/include/periph_conf.h
	modified:   ../../core/kernel_init.c
	modified:   ../../cpu/xam3359/include/beaglebone.h
	modified:   ../../cpu/xam3359/include/cpu-conf.h
	modified:   ../../cpu/xam3359/irq_arch.c
	modified:   ../../cpu/xam3359/periph/uart.c
	modified:   ../../cpu/xam3359/startup.c
	modified:   ../../cpu/xam3359/syscalls.c
	modified:   ../../cpu/xam3359/xam3359_linkerscript.lds
	modified:   Makefile
	modified:   main.c
Merge branch 'beaglebone' of https://github.com/madte/RIOT into beaglebone
- conflicts resolved
Conflicts:
	boards/beaglebone/board.c
	boards/beaglebone/include/periph_conf.h

	modified:   ../../boards/beaglebone/board.c
	modified:   ../../boards/beaglebone/gpio.c
	new file:   ../../boards/beaglebone/gpioLEDBlink.c
	new file:   ../../boards/beaglebone/include/hw_gpio_v2.h
	modified:   ../../boards/beaglebone/include/periph_conf.h
	modified:   ../../boards/beaglebone/include/uartEcho.h
	modified:   ../../cpu/xam3359/periph/gpio.c