Add support for ignoring 100 Continue responses.
Add support for ignoring 100 Continue responses.

--HG--
branch : 1.2

Licenser/lhttpc,whisper1/lhttpc,waisbrot/lhttpc,ferd/lhttpc,talko/lhttpc,spilgames/lhttpc,blt/lhttpc,hukl/lhttpc,SiftLogic/lhttpc,lpgauth/lhttpc,cs-codesocial/lhttpc,hirotnk/lhttpc,esl/fusco