Fixes a number of ecommerce issues: now correctly copies products and child products, adds correct styles for multi-column 'products per row', updates 'featured' views to look like other product views, fixes checkbox options in event registration and allows for NO default, moves chlldProduct model to ecommerce products folder, updates sample store db to be a more robust example [#1076 state:resolved responsible:dleffler milestone:2.2.2] [#1075 state:resolved responsible:dleffler milestone:2.2.2]