Added a PK to the sale_product table
Merge pull request #20 from roadster31/sales-attributes

Added a PK to the sale_product table
Add versionnable behaviour on customer table
	modified:   schema.xml
Merge pull request #21 from lovenunu/customer

Add versionnable behaviour on customer table
add product sale elements in order product
Merge pull request #23 from Alban-io/updateStock

add product sale elements in order product
Added module_config table, and meta_data table
Updated module table
Updated image
Merge pull request #24 from roadster31/module-config

Added module_config table, and meta_data table
Updated module table
Merge pull request #26 from bibich/master

Updated module table