rendering for edgeCurve true or false is working with click and hover
fixe edge captions to display with curved edges
Merge branch 'v0.2' into edgecaptions

Conflicts:
	app/scripts/alchemy/models/edge.coffee
change to semantics in model
fixing drag interactions to use node drawing
clustering into its own folder and class
index.html changes
Merge pull request #279 from ifjorissen/v0.2

V0.2
Clean index.html config
Merge branch 'hustonhedinger-edgecaptions' into v0.2
Merge branch 'v0.2' of https://github.com/GraphAlchemist/alchemy into v0.2

Conflicts:
	app/scripts/alchemy/drawing/drawEdges.coffee
	app/scripts/alchemy/drawing/drawingUtils.coffee
	app/scripts/alchemy/models/node.coffee
quick fix for updated clustering class
added edge id back to edge model, refactored drawNodes to mirror drawEdges and reimplemented remove behavior and added delete and backspace key funcitonality
refining force layout