Catalog of currently-failing examples (commented out, testsx, etc.):

glmmExt.R: "fail for MM" on Gaussian/inverse examples -- seems fine for me
lmer-0.R: sstudy9 example.  Should *not* work; is a meaningful error message possible?
prLogistic.R: Thailand/clustered-data example from ?prLogisticDelta example in prLogistic package
           Presumably the problem is that 100/411 random-effect levels have only zeros -- but should this mess things up?
           glmmML and lme4.0 give nearly identical answers

profile.R: fails on CBPP profiling

from testsx:
  testcolonizer: definite case where complete separation occurs, GLM does not really give a fit
  testcrabs: ?? not sure ??