memory leak in Tkapp_(Create|Delete)FileHandler plugged.

standard eyeballing

 the test program: 'grey2rgb' and 'rgb2grey'

the imagefiles and converting tham to a format suitable for imageop.  Also
added two more tests 'rgb2rgb8' and 'rgb82rgb' which remove the dependence
on the file 'greytest.rgb'.

Note: test_imgfile.py still uses 'greytest.rgb'

notes on embedding on the mac.

stead of standard Py_Initialize(), which it calls).

    - Quieted gcc -Wall by removing unused local variables.

    - Added some choice parentheses around assignments in conditional
      tests.

    - Removed an unused (and seemingly unreachable) err label in
      load_short_binstring().

    - in Unpickler_load(), removed \. in string format.

    - init_stuff() was declared to return an int, but had these
      problems:

	- it was returning NULL instead of 0 or 1 in some cases
	- it was falling of the end of the routine without returning
	  anything
	- the call of init_stuff() in initcPickle() was never checking
	  the return value anyway.

      I changed all this by returning 1 in the case of errors, 0 when
      no error occurred.  Then in initcPickle(), if init_stuff()
      returns non-zero, I call Py_FatalError().

Suppressing my urge to reformat according to Python coding standards!
:-)

Suppressing my urge to reformat according to Python coding standards!
:-)

    raise ConversionError, msg

where `msg' is passed as the argument to the constructor.

machines, the string may get longer than 20 characters!

in the distribution.

Don't assume gethostbyaddr()'s primary hostname is the same as
gethostname(), or even that gethostname() can be found in the list of
hosts returned by gethostbyaddr().  We do test for at least one FQDN
in gethostbyaddr().

(as well as unbuffered stdout/stderr).