Create modular context for stock
Remove stock-module Beans from item-module context
Add StockContext to AppContext
Refactor: Rename
Add a global RmiContext for every module

RmiContext respective to each modules should be imported to this
RmiContext
Rename module RmiContext with module name
Remove RmiContext from module context
Add RmiContext

RmiContexts should be created first
Create a global LocalContext to contain all the module's Beans
Add LocalContext to AppContext
Remove LocalContext from modules with Module Context
Create functionalities to find stock with item and warehouse
Add checking for item and warehouse pair exists in stock entity
Add Date column and its implementation
Change 'create' name to 'update'
Resolve Conflict
Remove CreateStockPaneModel
Remove CreateStockPaneController
Update Stock toString()
Add action to "Transfer Stock"

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