sleep library for cortex m0

Revision:
0:e8a124690cda
diff -r 000000000000 -r e8a124690cda mbed.bld
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Fri Sep 27 18:13:20 2013 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/a9913a65894f
\ No newline at end of file