added wip versions of linegraph
not working yet
graph is drawing
its working! woohoo!
adding dataset support, wip
fixed dataset bug
legend WIP
clarified var naming
everything but legend and barchart working. two axis! woohoo!
seperated legend and graphgroups. Still have to think about naming....
icons for left and right axis
renaming step 1
renaming step 2
auto scale yaxis
fixed dataset problem
test
bargraphs!! woohoo!!
structure, bugs, barchart, icons
fully functional!!
Merge branch 'develop' into graph2d

Conflicts:
	dist/vis.css
	dist/vis.js
	dist/vis.min.css
	dist/vis.min.js
	src/DataSet.js
	src/timeline/Timeline.js