Merge pull request #452 from ovatsus/master

Fix UTs
Merge pull request #454 from ovatsus/master

Remove Key from tests, try to see if TC will pass Apiary
Merge pull request #455 from ovatsus/master

Try to fix TC
Merge pull request #456 from ovatsus/master

Add JsonAnonymizer to a sample in the docs
Merge pull request #457 from ovatsus/master

Add disclaimer to sample
Improve xml provider generated api for the common case of collections (closes #418)