Provide all headers to SwiftObject and Blob

This commit provides parity with the existing Swift and all other
providers.
Merge branch 'master' of https://github.com/jclouds/jclouds-labs-openstack
OS Neutron v2.0 Extensions
* Router
* FloatingIP
* LBaaS :
	- Pool
	- PoolMember
	- HealthMonitor
	- VIP