Looser clustering
Node interactions blank when hidden
Alchemy.dash points to control dash
Scope selections inside alchemy instance

d3.select is still used when selecting an element from an event, usually seen as "d3.select(@)."  It is also used in the very initial setting of Control dash, but is still scoped because of the div selector, and is then set to alchemy.dash
Styles not lost on drag
Merge branch 'release-0.3' of https://github.com/GraphAlchemist/Alchemy into programmaticStyles

Conflicts:
	app/scripts/alchemy/clustering/clustering.coffee
	app/scripts/alchemy/drawing/drawNodes.coffee
Merge pull request #420 from MDCox/programmaticStyles

Fixes to Programmatic styles