sxml-transforms updated

Hi all.  I updated the sxml-transforms egg (SVN repo) with the
following two changes:

1. Do not prefix inline elements with a newline--fixes a problem with
extraneous whitespace.  E.g. (p "in" (em "cred") "ible") no longer
renders as "in credible".

2. Add (& ENTITY-NAME ...) rule.  Allows quoting of arbitrary
character references, e.g. (& "mdash") or (& "quot").  I added this to
the universal-conversion-rules since it is, effectively, universal. 
If this causes problems let me know.