release 3.2.0

Merge pull request #1083 from auhlig/3.1.0_release

3.1.0 release

Merge pull request #999 from auhlig/3.0.4_release

3.0.4 release

3.0.3 release

release 3.0.2 - move to 3.0.3-SNAPSHOT

3.0.1-SNAPSHOT

update README and travis

Merge pull request #508 from iviireczech/volume-metadata

Add Sample metadata init

Issue #500 - Use enums for Block Device Mappings

Release 2.0.7, REV Snapshot