made Onsetsu font global
added SyllableSize as default
added implementation of Spell class
added implementation of SpellList class
added Tween.js
added radio.js for pub/sub model
made Field a Widget
added offclick to remove click callbacks from Widgets
added SystemTween as global tick delegator
extracted getDescription from copy
implemented SyllableSelection widget
added iteration methods to SyllableBoard
added sample Tween
dragging for all Entities
revert to old clicking behaviour