update demo data
Merge branch 'master' of https://github.com/ekylibre/ekylibre
add centiliter unit and clean code.
Merge branch 'master' of https://github.com/ekylibre/ekylibre

Conflicts:
	config/locales/statistics.yml
	config/nomenclatures/product_nature_variants.xml
update first_run import for activities
clean code