fixed docs
added some doc info on robot firmware
added firmware beeps to documentation.  closes #84
use a subheader for firmware sounds
Revert "moved docs autoupdate script to util folder"

This reverts commit 79cf8a362775777cb385e38558acfad12acfafe1.
fixed docs docs
disable travis-ci notifications again

Id like notifications on the master branch only, but this isnt currently supported
Merge branch 'master' into mbed