manual fix of *.Rd files (for release) -- change do-roxy to protect against accidental destruction of *.Rd  by roxygenation
trying to use gSim() for producing data as  'issue #47'
but I'm not there yet..
try to get rid of  R-devel checkFF() warning   about nlmerAGQ ..
but no way. It's really a bug in R-devel rather than here.