- rename CreateHostingPackage to CreateCustomerHostingPackage
- add new CreateHostingPackage that allows to select a customer
- rename CreateHostingPackageForm to CreateCustomerHostingPackageForm
- add new CreateHostingPackageForm that has a customer field
- add new URL pattern create_hosting_package, rename existing pattern to
create_customer_hosting_package
- modify template dashboard/user_dashboard to use the correct URL name