Merge remote-tracking branch 'upstream/master'
merge fixes from experimental branch
Merge branch 'master' into revc1gsm
merge fixes from experiments
Merge branch 'millis' into revc1gsm

We require this helper for timeouts
merge the baudrate workaround
merge thautas serial clocks fix and revert my hacky workaround
Merge pull request #27 from rambo/revc1gsm

Revc1gsm