[BioC] Yeast annotations

[Marc Carlson]

Hi Karthik,

Can I further ask what you are using for gene identifiers here?  If you
are using something other than yeast systematic names, then I suspect
you will have trouble.  These are the yeast IDs that look like: 
"YAL001C", or "YGR116W". 

On a related note, I will correct the error you found in the vignette so
that it will state that you are supposed to use yeast systematic names
with the YEAST package.

Does this help?

    Marc