update animals first_run
Merge branch 'master' of https://github.com/ekylibre/ekylibre
Merge branch 'master' of https://github.com/ekylibre/ekylibre
refactorize building,building_divisions first_run to zones, adapt first_run and clean code.
Merge branch 'master' of https://github.com/ekylibre/ekylibre

Conflicts:
	config/locales/statistics.yml
	lib/tasks/first_run/buildings.rb