This commit does two things.

This commit does two things.

First, it introduces some sensible defaults for the html
output; these are described in layout.h and implemented in
the openTag, etc, routines.

Second, it modifies the way standard environments are handled.
The previous version was outputing the label for each paragraph
of e.g. a theorem.

git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@31744 a592a061-630c-0410-9148-cb99ea01b6c8