Driver for Fusion-io ioControl Hybrid array

Standard Cinder driver for iSCSI target array.
Uses REST API of the ioControl array.
Implements Quality of Service through the 5 Policies avaliable on the array.
Add Apache License block
Test results: https://bugs.launchpad.net/cinder/+bug/1317248

Change-Id: I27fdaedb9f75629a6af625f4e1c7d3f89a8cbb48
Implements: blueprint fusion-io-iocontrol-driver
Merge "Driver for Fusion-io ioControl Hybrid array"