Adding API to attach/detach port using Nova API

Change-Id: I91c7fe2321c7d44879cdebd4bc2d3a17c1913538
Even in case of multitenancy disabled also, update the project cookie for admin
project only if available.

Change-Id: Id088f92f13bb1d5b741d331be82fe7ccf20f5753
Added require js in dev-install as it is required for web-server-manager.

Change-Id: If4339aef496827d02e44c353bfd133fc2571090e
Merge "Adding API to attach/detach port using Nova API"
Merge "Added require js in dev-install as it is required for web-server-manager."
Merge pull request #59 from Juniper/master

Pull changes from Juniper/web-core to absingla/web-core