FIX: when retrieving the list of HDs, we must request the 'harddisks' link, not the 'disks' one
FIX: when retrieving the tier of a volume the virtualDatacenter object must be initialized first
[JCLOUDS-500] Initial commit for docker
JCLOUDS-622: remove calls to InputSupplier methods

Guava 16 deprecated these methods and Guava 18 will remove them.
Fix use of deprecated Strings2.toString(InputSupplier)
Remove deprecated Paylods.newPayload calls
Fix minor compilation warnings
Update jclouds.version to 1.8.0
[maven-release-plugin] prepare release jclouds-labs-1.8.0-rc1
[maven-release-plugin] prepare for next development iteration
jclouds.version up to next development version 1.8.1-SNAPSHOT
Removing dockerFile

Unintentionally added in 9b124ee9