[R-sig-ME] Patches for lme4 / pedigreemm

[Joehanes, Roby (NIH/NHLBI) [F]]

Hi all:

I have updated the patch for lme4 and pedigreemm against SVN release 1706 so that they can work together. Check this page:
https://r-forge.r-project.org/tracker/index.php?func=detail&aid=1928&group_id=60&atid=300

The SVN release 1706 of lme4 reflects a big change in glmer, presumably to fix issues in glmer. I adapted my previous changes to the new source. I also unified lmer_finalize and glmer_finalize into mer_finalize, as requested. I also added options for nlmer fitting into pedigreemm. I just do not know whether such situation is needed.

In this update, I also modified the refit routine so that we can choose any optimizer we want. The fixme tag in that section can be deleted now. Other than that, I also fixed a typo in the comment (familiy -> family).

Too bad that there is no date stamp in the attachment sections. The older updates are obsolete and I have no way to delete them.

Thanks,
Roby