Added embed single unserializer test (currently failing)
Updates to tests; added explicit embedded documents.
Added more tests for unserializing embedded documents
Fixed EmbedOne with discriminator map and with target document.
Removed test that doesn't apply to this fix.
CS fixes
Merge pull request #18 from crimsonronin/Hotfix/Unserializer

Hotfix: EmbedOne Unserializer