Progress on draw toolbar (measure, import/export and colour selection)
Add text background. Put area label in the polygon's centroid.
Add erase selected and undo erase. Add colour picker and panel.
Add text background as text symbol to solve zoom problems. Correct JSHint errors.
Merge branch 'master' of https://github.com/GeoCanViz/GeoCanViz into measure-json

Conflicts:
	src/js/gistasks/gisCluster.js
	src/js/gistasks/gisGeoprocessing.js
	src/js/gistasks/gisMapUtility.js
	src/js/sass/includes/toolbarnav.scss
Merge pull request #36 from jolevesq/measure-json

Measure json
Design modifications: header/footer/tools. New drawing cursors.
change requests
Added tooltip for north arrow. New north arrow. New header background
Merge branch 'master' of https://github.com/GeoCanViz/GeoCanViz into css_design_2

Conflicts:
	src/js/widgets/viewmodels/toolbarnavVM.js

Fixed conflict
Merge pull request #37 from phuppe/css_design_2

Design modifications: header/footer/tools. New drawing cursors.