Added new query structure.
added header text
Added new structure.
Move logic to build full query text in QueryBuilder
Added EscapeEmptyCallback
Remove deprecated parsers
Remove deprecated PipelineBuilder
Added integration test to check queryForObject
Merge branch 'iss4'

Conflicts:
	mingo-core/src/main/java/com/mingo/mapping/marshall/BsonMarshallingFactory.java