Merge pull request #28 from embaldridge/master

Pull request to get everything on the same page before tomorrow.
Merge pull request #33 from embaldridge/master

Dissertation updates and code fixes
Inserts blanks into likelihood list at the appropriate locations if the negative binomial fails to converge to a solution, or the negative bionomial or Poisson lognormal return -inf.  The second case should no longer be occurring, due to an earlier fix, but the work around is still there.
Merge remote-tracking branch 'upstream/master'