Add "List Stock" btn

OPEN - task 24: Create a stock module 
http://github.com/DevOpsDistilled/OpERP/issues/issue/24
Impl list()

OPEN - task 24: Create a stock module 
http://github.com/DevOpsDistilled/OpERP/issues/issue/24
Create bare ListStockPane components

OPEN - task 24: Create a stock module 
http://github.com/DevOpsDistilled/OpERP/issues/issue/24
Bean ListStockPane MVC components

OPEN - task 24: Create a stock module 
http://github.com/DevOpsDistilled/OpERP/issues/issue/24
Register Observer to StockModel

OPEN - task 24: Create a stock module 
http://github.com/DevOpsDistilled/OpERP/issues/issue/24
Show table with Stocks

OPEN - task 24: Create a stock module 
http://github.com/DevOpsDistilled/OpERP/issues/issue/24
Impl list()

OPEN - task 24: Create a stock module 
http://github.com/DevOpsDistilled/OpERP/issues/issue/24
Add "List Stock" func

Merge branch 'iss24-stock-module' into develop
Do StockModel.update() when this.update()

OPEN - task 24: Create a stock module 
http://github.com/DevOpsDistilled/OpERP/issues/issue/24
Show Items in warehouse

OPEN - task 24: Create a stock module 
http://github.com/DevOpsDistilled/OpERP/issues/issue/24
Show Items in warehouse in WarehouseDetailsPane

Merge branch 'iss24-stock-module' into develop