Adding a style

	NEJM has started using <div role="paragraph"> to demarcate the
beginning of a paragraph.  lynx renders this the same as <br>, which
makes it hard to read.  I tried to add a new style, ST_Div, in
WWW/Library/Implementation/HTStyle.h and rely on the fall-through
handling of div in src/HTML.c and src/LYCharUtils.c but the lynx I
build crashes.

russell bell