st: new files for -pweibull- -qweibull-

["Nick Cox" <n.j.cox@durham.ac.uk>]

Thanks to Kit Baum, the -pweibull- and -qweibull- 
packages revised last week have been updated. There 
were small bugs -- in fact the same bug -- in 
seldom-visited corners of both pweibull.ado and qweibull.ado. 

The retro versions pweibull4.ado and qweibull4.ado 
are unaffected. 

If you installed these files for Stata 8, please 
reinstall by 

ssc inst pweibull, replace
ssc inst qweibull, replace 

Nick 
n.j.cox@durham.ac.uk 

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