Merge tag '3.0.1' into develop

Rel

* tag '3.0.1':
  [maven-release-plugin] prepare for next development iteration
  [maven-release-plugin] prepare release halbuilder-core-3.0.1
Updated readme
Interface contracts/rendering support properties

Extracted two methods to allow interface contracts and
rendering to also work directly on a Map<String,Object>
as well as the HAL representation.

This allows reuse with anything that can be made into a
map ( such as a form encoded request ).
Made render public
Update guava to 15.0
Merge pull request #13 from slovdahl/develop-guava15

Update guava to 15.0
Merge branch 'develop' of github.com:HalBuilder/halbuilder-core into develop

* 'develop' of github.com:HalBuilder/halbuilder-core:
  Update guava to 15.0
Updated dependencies.

Moved XSI_NAMESPACE to halbuilder-xml and removed dep from core.
Updated deps for latest git, using released guava 15
[maven-release-plugin] prepare release halbuilder-core-3.1.1
[maven-release-plugin] prepare for next development iteration
Merge branch 'release/3.1.1'

* release/3.1.1:
  [maven-release-plugin] prepare for next development iteration
  [maven-release-plugin] prepare release halbuilder-core-3.1.1
  Updated deps for latest git, using released guava 15
  Updated dependencies.
  Update guava to 15.0
  Made render public
  Interface contracts/rendering support properties
  Updated readme