added silo code
Merge branch 'master' of https://github.com/jwbowler/maslab-2014
fixed reinitialization bug
added volatile keywords to variables written to by ISR's, as maple docs recommend
Merge remote-tracking branch 'upstream/master'
Fixed arduino-tablet communication bug.

First packet was not being received by the arduino.
Added a 2000ms sleep before sending init message
to fix.