126.96.36.199: documentation work related to move to Launchpad
* Delete SUPPORT and minimize BUGS.
The information that used to be there is now the first chapter of
the manual: "Getting Support and Reporting Bugs", Maybe it belongs
elsewhere, but IMO it should be as prominent as we can make it - so
the first chapter for now.
Refer to Lauchpad and sbcl-bugs in "Reporting Bugs".
Remove Dan B. from support providers for now, given that
metacircles.com is currently domain-parked.