Fix install/binary-distribution scripts for new contrib arrangements

Everything has moved, which led the binary-distribution script not to
include test-passed files, and the install script to look for them in
the wrong place anyway.
describe: show the same information about functions for 'x and #'x.

Declared type and information about inlining were not shown when used
as #'function.
Fix defmethod arglists leaking into make-method-lambda.

defmethod communicates to make-method-lambda using special variables,
but make-method-lambda then performs code-walking which expands
macros, and if a macro calls another make-method-lambda directly, this
make-method-lambda will receive incorrect information which may cause
problems with wrong lambda lists.
Reported and diagnosed by Attila Lendvai.