Remove Resource support
Test LinkFactory
Test LinksFactory
Test RelationPropertyMetadata
XmlHalSerializer serializes self link attributes
Remove the ability to add relations through the RelationsRepository

Now that we can have relations providers configured, it is easy to do with inlining.
Add a configuration extension point

Removes the possibility to add class relations to the RelationsRepository, because by using the metadata extension point caching will be used.
Merge pull request #80 from adrienbrault/metadata-madness

Metadata madness
Merge pull request #79 from adrienbrault/xml-hal-attributes

XmlHalSerializer serializes self link attributes
Merge pull request #78 from adrienbrault/tests

Tests
Merge pull request #77 from adrienbrault/kill-resource

Remove Resource support
Remove useless use statements