Use Kilolitres instead of Megalitres. Megalitres are REALLY big!
Megalitres to Kilolitres
Merge branch 'master' into fix_units

Conflicts:
	app/assets/javascripts/admin/products/units_controller.js.coffee
Change KL to kL, update specs for ML to kL change
Extract JS unit options into option value namer
Switch to class case for OptionValueNamer
Extract class methods to new class VariantUnitManager
Extract getScale from BOM controller to VariantUnitManager, extract specs as well
Call VariantUnitManager directly
Add comment
Extract unit names from OptionValueNamer into VariantUnitManager
Derive unitScales from unitNames
Convert variant_unit_options to a method, camelcase
Generate variantUnitOptions - DRY
Merge branch 'fix_units'