Sequencer updates.
Merge branch 'master' of https://github.com/72lions/StepDaddy

# By Thodoris Tsiridis (2) and David Lindkvist (1)
# Via David Lindkvist
* 'master' of https://github.com/72lions/StepDaddy:
  added request animation frame to scheduler
  Fixes bug where another track was added when a client reconnected
  Adds Sticky Sessions for the client.

Conflicts:
	clients/common/scripts/enum.events.js
	clients/sequencer/scripts/sequencer.js