todo for 0.14.4

- the function CCL::%FF-CALL isn't implemented on PPC64.  (This function's
   usually open-coded by the compiler, but the LAP version needs to be there
   if the compiler's not involved or if argument/return type keywords aren't
   compile-time constants.)

- LinuxPPC64: close, but not yet.

- test on old (no TLS, no NPTL) Linux distros.

- Cocoa demo - maybe integrate Alex Crain's code (don't have Alex Crain's
   code); want to at least offer the Hemlock-based editor in 0.14.4.
   Package reorg, in either case ?

- CHUD metering: new, needs docs, some fleshing-out and testing.

- test suite: ensure that nothing's been introduced recently, look for
   low-hanging fruit.

- resolve ASDF/McCLIM issues (duplicate component/file names)

- Christian Nybo's bug: can't reproduce or eyeball a problem.

- other ?