Added usage message to test program.

In Pythonrun, tirn off SIGPIPE and move signal handlers elsewhere.
In ceval.c, also move locals_2_fast/ fast_2_locals to frameobject.c,
replaced local variable trace by f->f_trace, got rid of unused
mergelocals() and unneeded calls to fast_2_locals, return the variable
name on "fast variable not found", AND use "__call__" method if it
exists to call an inmstance.  Whew!

compile.c: lists and dictionary in code objects become tuples
import.c: bump MAGIC
thread*.[ch]: added thread_ident() function
version.c: added '++' to version number and bumped date

CXOPYRIGHT: removed spaces at end of some lines

ftplib: get rid of non-auto port assignment

lib.tex: include libfcntl, libposixfile
myformat.sty: add tableii environment
libfcntl.tex, libposixfile.tex: docs contributed by Jaap V

Added mrsw (multiple-reader-single-writer) lock.

thread