Added the toString() method for FedoraResource.
Merge pull request #622 from lsitu/feature/resource2string

Added the toString() method for FedoraResource.
Serialize incoming RDF properties to JCR Strings
Merge pull request #623 from fcrepo4/jcr-string-values

Serialize incoming RDF properties to JCR Strings
Removed CND update form.
Collapse #rest-api namespace into #repository
- Remove #rels-ext namespace

Partial resolution of: https://www.pivotaltracker.com/story/show/82075356
Merge pull request #625 from lsitu/feature/cnd-form

Removed CND update form.
Normal user can only change properties but not add child nodes.
- Fix to only check ancestor existence instead of getting
  each ancestor that might raise AccessDeniedException if
  the user lacks permission to an ancestor.

Resolves: https://www.pivotaltracker.com/story/show/72982948
[maven-release-plugin] prepare release fcrepo-4.0.0-beta-04
[maven-release-plugin] prepare for next development iteration
[maven-release-plugin] rollback the release of fcrepo-4.0.0-beta-04
Add Sonatype release plugin repository
[maven-release-plugin] prepare release fcrepo-4.0.0-beta-04
[maven-release-plugin] prepare for next development iteration
Update site-maven-plugin version

Partial resolution of: https://www.pivotaltracker.com/story/show/82427854
Improve error message for cases of invalid or missing namespaces.

Resolves: https://www.pivotaltracker.com/story/show/82412616
Remove pointless double-lock and improve module branch coverage
Add tests in kernel-impl
Add test for build message exception
Remove unused method.