Updated to better MVC structure using an interface
Tracks in config must be declared as Genoverse.Track.extend({..})
Moved a number of properties and functions from Controller to Track
Made legend work
Moved Sequence chunks declaration to init to avoid memory sharing when adding tracks from the control panel
Make sequence features draw at a minimum of minScaledWidth
Fixed track library
Rewriting model and view creation - step 1
Part 2 - make separate instances of models and views in the lengthMap where necessary
updated combined js
Merge branch '2.0' of git@github.com:EugeneBragin/Genoverse.git into 2.0

Conflicts:
	index.html
	js/Track/File/VCF.js
	js/Track/Model/Sequence/Fasta.js
	js/Track/View/Sequence/Variation.js
	js/genoverse.combined.js
	js/plugins/fileDrop.js
ensure model/view exist before trying to use their prototypes