Clean up annotations without ids

[wbazant]

Sometimes BioMart returns annotations of the form

id<tab><empty space>

We want to remove these in almost all cases - the only places where we don't is:

• array designs
• gene id to gene name files
  The reason we don't: we use them for decorating files, and we assume that they'll be complete.

The benefit from this is operational efficiency: about 30% less space, and quite a few processes will run by this much faster. The resulting files will be also slightly more "correct" in the abstract sense of representing the annotations we want.

To implement this functionality you will need to add a new piece in the file Transform.sc, and then test it, and then take the annotation update part of atlasprod for a run with the resulting annotations. I am fairly certain about array design files and gene id to gene name files being the only ones where we want the blanks but it would need verifying.