[Ecls-list] Latest changes

[Juan Jose Garcia-Ripoll]

These changes are being uploaded to CVS/git:

 - Symbol SI:*INTERRUPT-DISABLE* changes name to SI:*INTERRUPTS-DISABLED*.

 - WITH-LOCK might run into a race condition when the lock acquisition process
   was interrupted.

 - The following functions are now interrupt safe: MP:MAKE-LOCK.

 - The use of GIVEUP-LOCK in WITH-LOCK is now protected against interrupts.

 - Forms in toplevel EVAL-WHEN or PROGN statements did not have a proper value
   of bytecodes.definition, causing the debugger to enter an infinite chain
   of errors