Enhancement deuce context swift full

Finishes the conversion for the Swift using the Deuce Context

Depends on PR #80 
@TheSriram - in that regard, it's how the code originally stood, I just modified parameters.

@painterjd - please confirm if @TheSriram is correct regarding the https://github.com/rackerlabs/deuce/pull/81#discussion_r16354845 and if so, whether you'd prefer that in a separate PR or not (it would probably be cleaner for it to be)