[cmucl-imp] Snapshot 2014-09

[Raymond Toy]

The Labor Day snapshot has been tagged and binaries will be uploaded
soon.

The major changes are:

o Deprecated FLOAT-TRAPPING-NAN-P in favor of
  FLOAT-SIGNALING-NAN-P. Signaling NaNs? are also now printed with
  "Signaling" instead of "Trapping".
o FP exceptions are handled better on the ppc port.
o The compiler can now derive the type of ROUND.
o Fixed an issue with multi-processing destroy-process doesn't take
  effect for a schedulable processbecause it has no run-reason and/or
  arrest-reason.
o Tickets #105, #84, #101, #106, and #100 have been fixed.
o A issues with fdlibm not signaling FP exceptions have been fixed.

Ray