HTTPConnectionImpl: do not contentDecode Head-Requests

git-svn-id: svn://svn.appwork.org/utils@2202 21714237-3853-44ef-a1f0-ef8f03a7d1fe
HTTPConnectionImpl: updated getRequestInfo

git-svn-id: svn://svn.appwork.org/utils@2203 21714237-3853-44ef-a1f0-ef8f03a7d1fe