Added Discussion Section and Fixed Appendix
Need to fix listings of code w/ sytnax highlight and such
 On branch master
 Changes to be committed:
	new file:   paper/tex/discussion.tex
	new file:   paper/tex/discussion_ambiguous.tex
	new file:   paper/tex/discussion_developers.tex
	new file:   paper/tex/discussion_security.tex
	new file:   paper/tex/discussion_users.tex
	modified:   paper/xmpp_iot.tex