Start to add circle icon to centre of regions.
Merge branch 'develop' into region-icon
Yay - blue circles. #21
Calls minus writing function on all regions.
Add plus minus icons. Fixes #45
merge in develop
Map icons now clickable.
Pointer/hand cursor now showing on map region hover.
Don't use window.location.origin

refs #30
Now showing workers for first and last years.
Lint
Merge branch 'map-enhancements' into develop

Conflicts:
	app/scripts/app.js
Small space added around graph as requested in #44