Message Title

The mapping of EmbeddableMappingTest.testEmbeddableCollection() does not look right. Specifically, it should not contain any "doth names" but properly nested JSON trees instead. Also there is a duplication of node names (there is some special handling for this in the MongoDB module). That's the current mapping (after rebasing everything to ORM 5):

{
  "goodBranch": {
    "storyText": "you go to the village",
    "ending": {
      "text": "village ending - everybody is happy",
      "score": 1
    }
  },
  "evilBranch": {
    "storyText": "you kill the villagers"
  },
  "chaoticBranches": [
    {
      "chaoticBranches.evilEnding.text": "you become a demon",
      "chaoticBranches.evilText": "assassinate the leader of the party",
      "chaoticBranches.evilEnding.score": 10
    },
    {
      "chaoticBranches.goodText": "you punish the bandits",
      "chaoticBranches.evilText": "search the evil [artifact]"
    }
  ],
  "neutralBranches": [
    {
      "neutralBranches.evilText": "steal the [artifact]"
    },
    {
      "neutralBranches.evilText": "kill the king"
    }
  ]
}

{
  "goodBranch": {
    "storyText": "you go to the village",
    "ending": {
      "text": "village ending - everybody is happy",
      "score": 1
    }
  },
  "evilBranch": {
    "storyText": "you kill the villagers"
  },
  "chaoticBranches": [
    {
      "evilEnding" : {
          "text": "you become a demon",
          "score": 10
      },
      "evilText": "assassinate the leader of the party",
    },
    {
      "goodText": "you punish the bandits",
      "evilText": "search the evil [artifact]"
    }
  ],
  "neutralBranches": [
    {
      evilText": "steal the [artifact]"
    },
    {
      evilText": "kill the king"
    }
  ]
}