index.css: Change column width from 50pt to 70pt

This accommodates the increase in the total number of tests, so that the
column default width is great enough for the 'all' category, which is
now 5 digits over 5 digits, a total of 11 characters.

Signed-off-by: Dylan Baker <baker.dylan.c@gmail.com>
html: Use the vastly faster "fixed" table layout algorithm.

The usual "auto" table layout algorithm makes the browser look at the
contents of each row in the table in order to determine the layout.  We
have 10,000 rows.  This is insanely expensive.

The "fixed" algorithm just uses the <col/> info, and possibly the first
row.  This works out just fine.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Dylan Baker <baker.dylan.c@gmail.com>
html: Escape test names in the summary page.

Characters like & and < are need to be escaped in proper HTML/XML.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Dylan Baker <baker.dylan.c@gmail.com>
html: Use XHTML 1.0 Strict.

We weren't specifying a DTD, which made validator.w3.org angry.  There's
no reason not to be strict or use SGML-based HTML, so go with XHTML.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Dylan Baker <baker.dylan.c@gmail.com>