Merge pull request #31 from pferraro/master

Change schema namespace to 3.0.
Merge pull request #32 from pferraro/master

Fix broken link.
Update change log for 3.0.0-rc-1 release.
[maven-release-plugin] prepare release 3.0.0-rc-1
[maven-release-plugin] prepare for next development iteration
[maven-release-plugin] rollback the release of 3.0.0-rc-1
Refresh plugin dependencies.
[maven-release-plugin] prepare release 3.0.0-rc-1
Rollback release.
[maven-release-plugin] prepare release 3.0.0-rc-1
[maven-release-plugin] prepare for next development iteration