Fix fakeui demo site deployment
Fix fakeui demo site deployment

* Use gulp instead of grunt
* Install required packages for pip

Change-Id: I7e3ecce0fe38ca3d0f5e6d639db904f227848f8f

fuel-infra/puppet-manifests,fuel-infra/puppet-manifests,fuel-infra/puppet-manifests,fuel-infra/puppet-manifests