Moves model geometry methods in to a concern

Conflicts:
	app/models/protected_area.rb
Merge branch 'master' of github.com:unepwcmc/ProtectedPlanet

* 'master' of github.com:unepwcmc/ProtectedPlanet:
  removes 2 whitespaces
  deletes temp tables on cartodb after inserting them on main table
  Update PA percentage test to reflect presenter
  Refactors stats controller code in to presenters
  Refactor global stats
  Clean up Country stats library

Conflicts:
	app/models/country.rb
	app/models/region.rb
	test/models/country_test.rb