added support to assign passwordless right to the default node user
Ignore ETags with non-hex suffixes

Amazon S3 blobs created via multi-part uploads have these suffixes.
Reference:

https://forums.aws.amazon.com/thread.jspa?messageID=203510
Merge pull request #1155 from andreaturli/virtualbox

added support to assign passwordless right to the default user of the node
Merge pull request #1157 from andrewgaul/ignore-etag-non-hex-suffix

Ignore ETags with non-hex suffixes
removed redundant metadata clients from vcloud-director
Merge pull request #1158 from jclouds/vcloud-redundant-metadata

removed redundant metadata clients from vcloud-director
refactored tests and internal code due to removing custom guava code
removed custom guava code for scoped binding and type params
Merge pull request #1159 from jclouds/no-custom-guava

Proxy overhaul