ISSUE-54: doctype-legacy-compat

In today's conference call, the following issue was looked at:

      http://www.w3.org/html/wg/tracker/issues/54

A number of people raised the issue that the solution in the current draft
only addressed one tool, and not all legacy tools.

      http://www.whatwg.org/specs/web-apps/current-work/#the-doctype

The suggestion was made that the name of this doctype be changed from
xslt-compat to legacy-compat.  Expressing support for this idea were
hsivonen, DanC, anne, gsnedders, smedero, and myself.  (Note: I believe
that Julian was also OK with this idea too, but didn't manage to scribe
that)

Any objections?

- Sam Ruby