[MERGE] Merged with uco-dev-addons1:
Following are the changes:
Task 819: mrp_procurement->procurement
Task 808: To add doc string to MRP & related modules
Task 813: To add doc string to stock and related modules with wizards
Task 909: multilevel bom: * Put multi_level_bom = True on demo data for product appearing into Manufacturing/Master Data/Master Bill of Materials. * Put domain = [('multi_level_bom','=',True)] on menu Manufacturing/Master Data/Master Bill of Materials
Task 290: Write YAML scenario for mrp and mrp related modules.