Remove MainWindowContext Import

OPEN - task 80: Create common entities 
http://github.com/DevOpsDistilled/OpERP/issues/issue/80
Add MainWindowContext Import

OPEN - task 80: Create common entities 
http://github.com/DevOpsDistilled/OpERP/issues/issue/80
Add bare Commons-module Context

OPEN - task 80: Create common entities 
http://github.com/DevOpsDistilled/OpERP/issues/issue/80
Remove obsolete Beans and Import MainWindowContext

OPEN - task 80: Create common entities 
http://github.com/DevOpsDistilled/OpERP/issues/issue/80
Import UIContext instead of MainWindowContext

OPEN - task 80: Create common entities 
http://github.com/DevOpsDistilled/OpERP/issues/issue/80