#18 Get data in warehouse
- fix on delete restrict of unit,supplier for product
- fix on delete restrict of product,customer for sale_time_price
- fix on delete restrict of supplier,product for time_price
#18 Get data in warehouse
- fix generated product entity after integrate of last sale price
#18 Get data in warehouse
- fix crud interfaces of product entity because of last sale price field
Merge pull request #19 from asajin/t18_warehouse

#18 Get data in warehouse