'_type' field added into ReducedDocs, ToReduceDocs, IndexedWordList classes
Formatting changes.
ReducedDocs, ToReduceDocs, IndexedWordList classes added in queries where there instances must be excluded.
Option added which clean inconsistent documents of classes used for map-reducing.
Merge pull request #696 from AvadootNachankar/mongokit

Bug fix: Inconsistent/Invalid structure of instances of classes used for map-reducing