Metacat

Improvements to the OBFS stylesheet, especially for EML display. Now we
import the eml_xsl.css stylesheet and override several of its templates.

This is the merge from the branch WEB_UI_REDESIGN_BRANCH back into the head.
The only files that have been removed are those in lib/style/eml2; other files
that have been cvs removed (only from lib/ and lib/style) have been re-added
elsewhere (i.e. moved from one directory to another)....