Start fix draw toolbar bugs
Continue fix draw toolbar bugs
Finish bug fix for draw toolbar. Add unelectable class to set text not selectable. Solve the file dialog open when click on tools. Add import graphics to stack.
Reorder layer when cluster to make sure graphic is always on top. Add a getTextWidth function because symbol.getWidth doesn't work properly. Upgrade background generation.
Merge branch 'master' of github.com:GeoCanViz/GeoCanViz into fix-draw

Conflicts:
	demos/gcaut/configGCAut.json
	demos/gcaut/sample-eng.html
	src/js/widgets/viewmodels/headerVM.js
	src/js/widgets/viewmodels/toolbardrawVM.js
Merge pull request #50 from jolevesq/fix-draw

Fix draw toolbar