Merge pull request #112 from virtual-world-framework/triggers

Triggers
Recovered and working
Finally back to point before rebase errors
More sounds in yaml
Exploring generators/promises to track load completion
Pre-Kevin-This-Self-Review
Broken Sound Review
Fixed some bugs - passing it back to Spencer.
Fixes to the fixes.
Layers, starting, stopping and some volume ramping in... investigating issue with ramping on non-layered sounds.
Added more SFX to yaml - demo usage of sound driver in marsGameSound (look at rover sounds usage). Pre-PR commit.
Finally back to point before rebase errors

Conflicts:
	source/marsGameSound.js
	source/marsGameSound.vwf.yaml
More sounds in yaml

Conflicts:
	source/marsGameSound.js
	source/marsGameSound.vwf.yaml
Exploring generators/promises to track load completion
Pre-Kevin-This-Self-Review
Broken Sound Review
Fixed some bugs - passing it back to Spencer.
Fixes to the fixes.
Layers, starting, stopping and some volume ramping in... investigating issue with ramping on non-layered sounds.
EoD commit/push - working on adding playSequence and playOnLoad

Conflicts:
	source/marsGameSound.js
	source/marsGameSound.vwf.yaml