Devices are assigned in order now.
Merge branch 'master' of https://github.com/72lions/StepDaddy

# By David Lindkvist (1) and Thodoris Tsiridis (1)
# Via David Lindkvist
* 'master' of https://github.com/72lions/StepDaddy:
  updated playhead style
  Adds support for the SEQUENCER_BEAT

Conflicts:
	clients/device/scripts/device.js
	clients/mixer/scripts/mixer.js