Removed #_docElements, replaced it with #_currentElement
Removed #_docElements, replaced it with #_currentElement

Also delayed adding of elements to their parent (made check for .skip
irrelevant in converter methods), and added a parent property to
elements

siuying/readabilitySAX,fb55/readabilitySAX,siuying/readabilitySAX,mvasilkov/coherence,fb55/readabilitySAX