Doesn't attempt to set the baud rate from the variable as that breaks it
Interupt now fires :)
Debugging prints tidied up
Now seems to timeout
Minor debug output and timeout tweaks
Now calls the protocol buffer handler
Merge branch 'serial-timeout' of https://github.com/feshie/contiki into serial-timeout

Conflicts:
	platform/z1/dev/uart1_i2c_master.c
Merge branch 'serial-timeout' into release-2-7