diff --git a/Demo/scripts/freeze.py b/Demo/scripts/freeze.py
deleted file mode 100755
index be6d263..0000000
--- a/Demo/scripts/freeze.py
+++ /dev/null
@@ -1,480 +0,0 @@
-#! /usr/local/bin/python
-
-# Given a Python script, create a binary that runs the script.
-# The binary is 100% independent of Python libraries and binaries.
-# It will not contain any Python source code -- only "compiled" Python
-# (as initialized static variables containing marshalled code objects).
-# It even does the right thing for dynamically loaded modules!
-# The module search path of the binary is set to the current directory.
-#
-# Some problems remain:
-# - It's highly non-portable, since it knows about paths and libraries
-#   (there's a customization section though, and it knows how to
-#   distinguish an SGI from a Sun SPARC system -- adding knowledge
-#   about more systems is left as an exercise for the reader).
-# - You need to have the Python source tree lying around as well as
-#   the "libpython.a" used to generate the Python binary.
-# - For scripts that use many modules it generates absurdly large
-#   files (frozen.c and config.o as well as the final binary),
-#   and is consequently rather slow.
-#
-# Caveats:
-# - The search for modules sometimes finds modules that are never
-#   actually imported since the code importing them is never executed.
-# - If an imported module isn't found, you get a warning but the
-#   process of freezing continues.  The binary will fail if it
-#   actually tries to import one of these modules.
-# - This often happens with the module 'mac', which module 'os' tries
-#   to import (to determine whether it is running on a Macintosh).
-#   You can ignore the warning about this.
-# - If the program dynamically reads or generates Python code and
-#   executes it, this code may reference built-in or library modules
-#   that aren't present in the frozen binary, and this will fail.
-# - Your program may be using external data files, e.g. compiled
-#   forms definitions (*.fd).  These aren't incorporated.  Since
-#   sys.path in the resulting binary only contains '.', if your
-#   program searches its data files along sys.path (as the 'flp'
-#   modules does to find its forms definitions), you may need to
-#   change the program to extend the search path or instruct its users
-#   to set the environment variable PYTHONPATH to point to your data
-#   files.
-#
-# Usage hints:
-# - If you have a bunch of scripts that you want to freeze, instead
-#   of freezing each of them separately, you might consider writing
-#   a tiny main script that looks at sys.argv[0] and then imports
-#   the corresponding module.  You can then make links to the
-#   frozen binary named after the various scripts you support.
-#   Pass the additional scripts as arguments after the main script.
-#   A minimal script to do this is the following.
-#       import sys, posixpath
-#       exec('import ' + posixpath.basename(sys.argv[0]) + '\n')
-
-
-import os
-import sys
-import regex
-import getopt
-import regsub
-import string
-import marshal
-
-# Function to join two pathnames with a slash in between
-j = os.path.join
-
-##################################
-# START OF CONFIGURATION SECTION #
-##################################
-
-# Attempt to guess machine architecture
-if os.path.exists('/usr/lib/libgl_s'): ARCH = 'sgi'
-elif os.path.exists('/etc/issue'): ARCH = 'sequent'
-else: ARCH = 'sun4'
-
-# Site parametrizations (change to match your site)
-CC = 'cc'				# C compiler
-TOP = '/ufs/guido/src'			# Parent of all source trees
-PYTHON = j(TOP, 'python')		# Top of the Python source tree
-SRC = j(PYTHON, 'src')			# Python source directory
-BLD = j(PYTHON, 'build.' + ARCH)	# Python build directory
-#BLD = SRC				# Use this if you build in SRC
-
-LIBINST = '/ufs/guido/src/python/irix4/tmp/lib/python/lib' # installed libraries
-INCLINST = '/ufs/guido/src/python/irix4/tmp/include/Py' # installed include files
-
-# Other packages (change to match your site)
-DL = j(TOP, 'dl')			# Top of the dl source tree
-DL_DLD = j(TOP, 'dl-dld')		# The dl-dld source directory
-DLD = j(TOP, 'dld-3.2.3')		# The dld source directory
-FORMS = j(TOP, 'forms')			# Top of the FORMS source tree
-STDWIN = j(TOP, 'stdwin')		# Top of the STDWIN source tree
-READLINE = j(TOP, 'readline.' + ARCH)	# Top of the GNU Readline source tree
-SUN_X11 = '/usr/local/X11R5/lib/libX11.a'
-
-# File names (usually no need to change)
-LIBP = [				# Main Python libraries
-        j(LIBINST, 'libPython.a'),
-        j(LIBINST, 'libParser.a'),
-        j(LIBINST, 'libObjects.a'),
-        j(LIBINST, 'libModules.a')
-       ]
-CONFIG_IN = j(LIBINST, 'config.c.in')	# Configuration source file
-FMAIN = j(LIBINST, 'frozenmain.c')	# Special main source file
-
-# Libraries needed when linking.  First tuple item is built-in module
-# for which it is needed (or '*' for always), rest are ld arguments.
-# There is a separate list per architecture.
-libdeps_sgi = [ \
-	  ('stdwin',	j(STDWIN, 'Build/' + ARCH + '/x11/lib/lib.a')), \
-	  ('fl',	j(FORMS, 'FORMS/libforms.a'), '-lfm_s'), \
-	  ('*',		j(READLINE, 'libreadline.a'), '-ltermcap'), \
-	  ('al',	'-laudio'), \
-	  ('sv',	'-lsvideo', '-lXext'), \
-	  ('cd',	'-lcdaudio', '-lds'), \
-	  ('cl',	'-lcl'), \
-	  ('imgfile',	'-limage', '-lgutil', '-lm'), \
-	  ('mpz',	'/ufs/guido/src/gmp/libgmp.a'), \
-	  ('*',		'-lsun'), \
-	  ('*',		j(DL, 'libdl.a'), '-lmld'), \
-	  ('*',		'-lmpc'), \
-	  ('fm',	'-lfm_s'), \
-	  ('gl',	'-lgl_s', '-lX11_s'), \
-	  ('stdwin',	'-lX11_s'), \
-	  ('*',		'-lm'), \
-	  ('*',		'-lc_s'), \
-	  ]
-libdeps_sun4 = [ \
-	  ('*',		'-Bstatic'), \
-	  ('stdwin',	j(STDWIN, 'Build/' + ARCH + '/x11/lib/lib.a')), \
-	  ('*',		j(READLINE, 'libreadline.a')), \
-	  ('*',		'-lm'), \
-	  ('*',		j(DL_DLD,'libdl.a'), j(DLD,'libdld.a')), \
-	  ('*',		SUN_X11), \
-	  ('*',		'-ltermcap'), \
-	  ('*',		'-lc'), \
-	  ]
-libdeps_sequent = [ \
-	  ('*',		j(LIBINST, 'libreadline.a'), '-ltermcap'), \
-	  ('*',		'-lsocket'), \
-	  ('*',		'-linet'), \
-	  ('*',		'-lnsl'), \
-	  ('*',		'-lm'), \
-	  ('*',		'-lc'), \
-	  ]
-libdeps = eval('libdeps_' + ARCH)
-
-################################
-# END OF CONFIGURATION SECTION #
-################################
-
-# Exception used when scanfile fails
-NoSuchFile = 'NoSuchFile'
-
-# Global options
-quiet = 0				# -q
-verbose = 0				# -v
-noexec = 0				# -n
-nowrite = 0				# -N
-ofile = 'a.out'				# -o file
-
-# Main program -- argument parsing etc.
-def main():
-	global quiet, verbose, noexec, nowrite, ofile
-	try:
-		opts, args = getopt.getopt(sys.argv[1:], 'nNo:qv')
-	except getopt.error, msg:
-		usage(str(msg))
-		sys.exit(2)
-	for o, a in opts:
-		if o == '-n': noexec = 1
-		if o == '-N': nowrite = 1
-		if o == '-o': ofile = a
-		if o == '-q': verbose = 0; quiet = 1
-		if o == '-v': verbose = verbose + 1; quiet = 0
-	if len(args) < 1:
-		usage('please pass at least one file argument')
-		sys.exit(2)
-	process(args[0], args[1:])
-
-# Print usage message to stderr
-def usage(*msgs):
-	sys.stdout = sys.stderr
-	for msg in msgs: print msg
-	print 'Usage: freeze [options] scriptfile [modulefile ...]'
-	print '-n      : generate the files but don\'t compile and link'
-	print '-N      : don\'t write frozen.c (do compile unless -n given)'
-	print '-o file : binary output file (default a.out)'
-	print '-q      : quiet (no messages at all except errors)'
-	print '-v      : verbose (lots of extra messages)'
-
-# Process the script file
-def process(filename, addmodules):
-	global noexec
-	#
-	if not quiet: print 'Computing needed modules ...'
-	todo = {}
-	todo['__main__'] = filename
-	for name in addmodules:
-		mod = os.path.basename(name)
-		if mod[-3:] == '.py': mod = mod[:-3]
-		todo[mod] = name
-	try:
-		dict = closure(todo)
-	except NoSuchFile, filename:
-		sys.stderr.write('Can\'t open file %s\n' % filename)
-		sys.exit(1)
-	#
-	mods = dict.keys()
-	mods.sort()
-	#
-	if verbose:
-		print '%-15s %s' % ('Module', 'Filename')
-		for mod in mods:
-			print '%-15s %s' % (`mod`, dict[mod])
-	#
-	if not quiet: print 'Looking for dynamically linked modules ...'
-	dlmodules = []
-	objs = []
-	libs = []
-	for mod in mods:
-		if dict[mod][-2:] == '.o':
-			if verbose: print 'Found', mod, dict[mod]
-			dlmodules.append(mod)
-			objs.append(dict[mod])
-			libsname = dict[mod][:-2] + '.libs'
-			try:
-				f = open(libsname, 'r')
-			except IOError:
-				f = None
-			if f:
-				libtext = f.read()
-				f.close()
-				for lib in string.split(libtext):
-					if lib in libs: libs.remove(lib)
-					libs.append(lib)
-	#
-	if not nowrite:
-		if not quiet: print 'Writing frozen.c ...'
-		writefrozen('frozen.c', dict)
-	else:
-		if not quiet: print 'NOT writing frozen.c ...'
-	#
-##	if not dlmodules:
-	if 0:
-		config = CONFIG
-		if not quiet: print 'Using existing', config, '...'
-	else:
-		config = 'tmpconfig.c'
-		if nowrite:
-			if not quiet: print 'NOT writing config.c ...'
-		else:
-			if not quiet:
-				print 'Writing config.c with dl modules ...'
-			f = open(CONFIG_IN, 'r')
-			g = open(config, 'w')
-			m1 = regex.compile('-- ADDMODULE MARKER 1 --')
-			m2 = regex.compile('-- ADDMODULE MARKER 2 --')
-			builtinmodules = []
-			stdmodules = ('sys', '__main__', '__builtin__',
-				      'marshal')
-			todomodules = builtinmodules + dlmodules
-			for mod in dict.keys():
-				if dict[mod] == '<builtin>' and \
-					  mod not in stdmodules:
-					builtinmodules.append(mod)
-			while 1:
-				line = f.readline()
-				if not line: break
-				g.write(line)
-				if m1.search(line) >= 0:
-					if verbose: print 'Marker 1 ...'
-					for mod in todomodules:
-						g.write('extern void init' + \
-						  mod + '();\n')
-				if m2.search(line) >= 0:
-					if verbose: print 'Marker 2 ...'
-					for mod in todomodules:
-						g.write('{"' + mod + \
-						  '", init' + mod + '},\n')
-			g.close()
-	#
-	if not quiet:
-		if noexec: print 'Generating compilation commands ...'
-		else: print 'Starting compilation ...'
-	defs = ['-DNO_MAIN', '-DUSE_FROZEN', '-DPYTHONPATH=\'"."\'']
-	#
-	incs = ['-I.', '-I' + INCLINST]
-	if dict.has_key('stdwin'):
-		incs.append('-I' + j(STDWIN, 'H'))
-	#
-	srcs = [config, FMAIN]
-	#
-	if type(LIBP) == type(''):
-		libs.append(LIBP)
-	else:
-		for lib in LIBP:
-			libs.append(lib)
-	for item in libdeps:
-		m = item[0]
-		if m == '*' or dict.has_key(m):
-			for l in item[1:]:
-				if l in libs: libs.remove(l)
-				libs.append(l)
-	#
-	sts = 0
-	#
-	cmd = CC + ' -c'
-	cmd = cmd + ' ' + string.join(defs)
-	cmd = cmd + ' ' + string.join(incs)
-	cmd = cmd + ' ' + string.join(srcs)
-	print cmd
-	#
-	if not noexec:
-		sts = os.system(cmd)
-		if sts:
-			print 'Exit status', sts, '-- turning on -n'
-			noexec = 1
-	#
-	for s in srcs:
-		s = os.path.basename(s)
-		if s[-2:] == '.c': s = s[:-2]
-		o = s + '.o'
-		objs.insert(0, o)
-	#
-	cmd = CC
-	cmd = cmd + ' ' + string.join(objs)
-	cmd = cmd + ' ' + string.join(libs)
-	cmd = cmd + ' -o ' + ofile
-	print cmd
-	#
-	if not noexec:
-		sts = os.system(cmd)
-		if sts:
-			print 'Exit status', sts
-		else:
-			print 'Done.'
-	#
-	if not quiet and not noexec and sts == 0:
-		print 'Note: consider this:'; print '\tstrip', ofile
-	#
-	sys.exit(sts)
-
-
-# Generate code for a given module
-def makecode(filename):
-	if filename[-2:] == '.o':
-		return None
-	try:
-		f = open(filename, 'r')
-	except IOError:
-		return None
-	if verbose: print 'Making code from', filename, '...'
-	text = f.read()
-	code = compile(text, filename, 'exec')
-	f.close()
-	return marshal.dumps(code)
-
-
-# Write the C source file containing the frozen Python code
-def writefrozen(filename, dict):
-	f = open(filename, 'w')
-	codelist = []
-	for mod in dict.keys():
-		codestring = makecode(dict[mod])
-		if codestring is not None:
-			codelist.append((mod, codestring))
-	write = sys.stdout.write
-	save_stdout = sys.stdout
-	try:
-		sys.stdout = f
-		for mod, codestring in codelist:
-			if verbose:
-				write('Writing initializer for %s\n'%mod)
-			print 'static unsigned char M_' + mod + '[' + \
-				  str(len(codestring)) + '+1] = {'
-			for i in range(0, len(codestring), 16):
-				for c in codestring[i:i+16]:
-					print str(ord(c)) + ',',
-				print
-			print '};'
-		print 'struct frozen {'
-		print '  char *name;'
-		print '  unsigned char *code;'
-		print '  int size;'
-		print '} frozen_modules[] = {'
-		for mod, codestring in codelist:
-			print '  {"' + mod + '",',
-			print 'M_' + mod + ',',
-			print str(len(codestring)) + '},'
-		print '  {0, 0, 0} /* sentinel */'
-		print '};'
-	finally:
-		sys.stdout = save_stdout
-	f.close()
-
-
-# Determine the names and filenames of the modules imported by the
-# script, recursively.  This is done by scanning for lines containing
-# import statements.  (The scanning has only superficial knowledge of
-# Python syntax and no knowledge of semantics, so in theory the result
-# may be incorrect -- however this is quite unlikely if you don't
-# intentionally obscure your Python code.)
-
-# Compute the closure of scanfile() -- special first file because of script
-def closure(todo):
-	done = {}
-	while todo:
-		newtodo = {}
-		for modname in todo.keys():
-			if not done.has_key(modname):
-				filename = todo[modname]
-				if filename is None:
-					filename = findmodule(modname)
-				done[modname] = filename
-				if filename in ('<builtin>', '<unknown>'):
-					continue
-				modules = scanfile(filename)
-				for m in modules:
-					if not done.has_key(m):
-						newtodo[m] = None
-		todo = newtodo
-	return done
-
-# Scan a file looking for import statements
-importstr = '\(^\|:\)[ \t]*import[ \t]+\([a-zA-Z0-9_, \t]+\)'
-fromstr   = '\(^\|:\)[ \t]*from[ \t]+\([a-zA-Z0-9_]+\)[ \t]+import[ \t]+'
-isimport = regex.compile(importstr)
-isfrom = regex.compile(fromstr)
-def scanfile(filename):
-	allmodules = {}
-	try:
-		f = open(filename, 'r')
-	except IOError, msg:
-		raise NoSuchFile, filename
-	while 1:
-		line = f.readline()
-		if not line: break # EOF
-		while line[-2:] == '\\\n': # Continuation line
-			line = line[:-2] + ' '
-			line = line + f.readline()
-		if isimport.search(line) >= 0:
-			rawmodules = isimport.group(2)
-			modules = string.splitfields(rawmodules, ',')
-			for i in range(len(modules)):
-				modules[i] = string.strip(modules[i])
-		elif isfrom.search(line) >= 0:
-			modules = [isfrom.group(2)]
-		else:
-			continue
-		for mod in modules:
-			allmodules[mod] = None
-	f.close()
-	return allmodules.keys()
-
-# Find the file containing a module, given its name; None if not found
-builtins = sys.builtin_module_names + ['sys']
-def findmodule(modname):
-	if modname in builtins: return '<builtin>'
-	for dirname in sys.path:
-		dlfullname = os.path.join(dirname, modname + 'module.o')
-		try:
-			f = open(dlfullname, 'r')
-		except IOError:
-			f = None
-		if f:
-			f.close()
-			return dlfullname
-		fullname = os.path.join(dirname, modname + '.py')
-		try:
-			f = open(fullname, 'r')
-		except IOError:
-			continue
-		f.close()
-		return fullname
-	if not quiet:
-		sys.stderr.write('Warning: module %s not found\n' % modname)
-	return '<unknown>'
-
-
-# Call the main program
-main()