Implemented total net price for offers
Merge branch 'develop' of git://github.com/sulu-cmf/SuluSalesOrderBundle into feature/totalNetPrice

Conflicts:
	Order/OrderManager.php
Renamed totalPrice to totalNetPrice
Uncommented flush
Moved total price logic from order manager to own OrderUpdater
Readded form validation
Merge branch 'develop' of git://github.com/sulu-cmf/SuluSalesOrderBundle into feature/totalNetPrice
Update total price just on put and post orders
Cleanup code