Implemented EBS volume filtering
IMplemented volume tags
Added missing tag reading
Added support for tags
Altered the way hold/release works on password callbacks (Issue #11)
Left name/description tags as tags (Issue #12)
Used helper method for setting tags
Implemented FirewallCreateOptions
Initial support for network firewalls (network ACLs) (issue #8)
Finished work on issue #8
Added support for snapshot copying between regions
Added in tag updates/removes
Merge branch 'develop' of https://github.com/clstokes/dasein-cloud-aws into develop

Conflicts:
	src/main/java/org/dasein/cloud/aws/compute/EBSSnapshot.java
	src/main/java/org/dasein/cloud/aws/compute/EBSVolume.java
	src/main/java/org/dasein/cloud/aws/compute/EC2Instance.java