For Arch or Xadow M0, use on-board button to provide multifunction.

Dependencies:   mbed

Revision:
0:0d08d0b3c7ed
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Tue Jan 13 12:46:12 2015 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/4fc01daae5a5
\ No newline at end of file