Ted Lin / Mbed 2 deprecated Nucleo_key_led_with_timeout

implement button press/release with double check using fall/rise & timeout

Dependencies:   mbed

Diff: mbed.bld

Revision:
1:63744318c4d7
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Sun Aug 28 05:17:30 2016 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/2241e3a39974
\ No newline at end of file