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.