JCLOUDS-692: Removing CloudSigma v1 features

Follow-on from jclouds/jclouds commit f7aea987
JCLOUDS-742: Removing cloudonestorage feature

Provider was removed in jclouds/jclouds commit 9df0cd24
Catching up with provider removal in jclouds core

* bluelock-vcloud-zone01 (7e04f62)
* greenhousedata-element-vcloud (0acc61b)
* JCLOUDS-735: ninefold-storage (1d95d29) and ninefold-compute (1d95d29)

Also adding cloudstack as a feature explicitly since it's no longer
transitively included via ninefold-compute
Removing references to azure-common from the azureblob feature

azure-common was folded into azureblob in jclouds/jclouds 6843e0c
Listing features alphabetically