JCLOUDS-458: Live tests for BucketAccessControls and DefaultObjectAccess Controls

Replace Math.random with UUID

minor changes

Up to 2.0.0-SNAPSHOT after the 1.8.0 release

Updating project and jclouds.version to 2.0.0-SNAPSHOT

JCLOUDS-653: Address Guava 18 deprecations

Mostly renaming Objects.toStringHelper to MoreObjects.toStringHelper.

Remove maven-license-plugin

This never seemed to work and we will enforce license text via
Checkstyle instead.

JCLOUDS-643: Fix Google and OAuth tests

JCLOUDS-633: Support passing bearer token directly for OAuth2

JCLOUDS-661: Supporting single port firewall rules in GCE

Corresponding test added in
https://git-wip-us.apache.org/repos/asf?p=jclouds.git;h=f3778b6

Fixing whitespace for checkstyle violation

Naming and few other minor changes