3 patches to cvs

[Angus Leeming]

Attached are 3 patches

patch-insets cleans up the use of Buffer * by InsetBibtex and InsetInclude

patch-redundant removes some functions/variables from mathed that are 
declared but not used. The result of compiling extra-picky!

patch-xforms cleans up the frontend/xforms directory in some small ways.

Angus

patch-insets.bz2

patch-redundant.bz2

patch-xforms.bz2