Finished TODO for final guard in Parser.parse, also added new failsafe EUNFNTEX error.  Ensures KNOWN text params have finished streaming their bytes in to the server before passing control.  If the known text params get around to that after a while (exponential backoff s.t. 5 <= timeout ms  <= 500ms, up to 10 distinct tries)
Merge branch 'streams2' of github.com:mikermcneil/file-parser into streams2