[WIP] Transport object and per-beat event generation
Upgrade to Backbone 1.0.0.
Transport event generation overhaul and simple looping.
Tweak Pattern defaults property name.
Pass sequence data into patterns.
Remove old obsolete Pattern code matching.
Transport HUD.
Avoid crashes while editing wait() lines.
Patterns generate only one iteration by default.
Refine empty runEvent check.
Fancy looping/end time pattern sequencing.
Let's make some music
Fix grammar.
Move audio context init to bottom of file.
Minor demo song tweak.
Add a simple global jam output node (for vol/mute).
Add an icon font.
Simple volume mute UI.
Volume level UI.
Use icons for HUD buttons.