Lots of tweaks that make the what/which+noun questions all work, plus corrected a few ancient typos I noticed
speech-act tagging all good, plus some other stuff-in-progress. . .
fixes a speech-act rule bug, gets question-determiners half working, and cleans up some variable names
fixes   swith in whichiobj rule
Merge pull request #186 from anitzkin/questionrules

Lots of tweaks that make the what/which+noun questions all work