[BioC] Missing file in rhdf5

[Jeff Gentry]

> No. I thought that the bundle included everything I needed.

It does, and it is a bug.  It is my fault ... I noticed this a while back,
sent an email to the author of rhdf5 and promptly forgot to followup on
it. 

The problem is that the compiler doesn't seem to pick up the current
directory when searching for header files (even despite using "common.h"),
and I'm not familiar enough with the way source files are compiled with R
to say exactly how to fix it.  I'll look into this and get it fixed.

-J