[IMP]improved some view:project form view,Task form view ,project kaban view, Contract form view and payment,and Chatter of project form view

[IMP]Improved some code as per coding convention.

[IMP]applied filter services on product view,changed position of to invoice div.
[IMP]used product.template instead of product.product and seted default_type service domain.
[IMP]Removed all domain from service menu
[IMP]used xmlid_to_res_id method,remove icon,improved typo.
[IMP]renamed is_escalate field to can_escalte and maked it none stored function field.