Added countdown clock

Countdown clock with events has been added, temporarily hardcoded at 4
minutes
Changed event throwing object reference

References now use root.host, which is more robust
Merge remote-tracking branch 'origin/tw' into tw

Conflicts:
	app/views/tracks/new.html.erb
Fixing overwritten asset path mistake
Changing event dispatch

Event dispatch now uses root.host, which is more robust. Notes are given
in ticks now
Merge pull request #10 from soundsplosion/tw

Tw