[clean-list] Clean 2.3 available for Windows and Linux

[John van Groningen]

Clean 2.3 is now available for Windows and Linux (IA32 and AMD64) at:

http://wiki.clean.cs.ru.nl/Download_Clean

New in version 2.3:

Language additions:

- Unboxed and boxed array expressions and comprehensions.
   For example:
	{# 0,1,2 } // an array of type .{#Int}
	{! 0,1,2 } // an array of type .{!Int}
	{# e+e \\ e <- [0,1,2] } // an array of type .{#Int}
	{! e+e \\ e <- [0,1,2] } // an array of type .{!Int}

- Record and array updates after # can also be written as:
	# r & x = 1
   instead of
	# r = {r & x = 1}
   or
	# a & [i] = x
   instead of
	# a = {a & [i] = x}
   Multiple updates are also allowed, for example:
	# r & x = 1,
               y = 2,
               z = 3
   instead of
	# r = {r & x=1, y=2, z=3}
   Multiple fields and indices are also possible, for example:
	# r & a.[i].x = y
   instead of
	# r = {r & a.[i].x = y}

- A generic function can be imported explicitly, for example:
	from StdGeneric import generic bimap

Windows libraries:

- Renamed ArgEnvWindows to ArgEnv.
- The Tcp library has been split in a part that does not depend on
   Object IO and a part that does. This new library (TCPIP) should now
   be used.
- Ported MersenneTwister, Gast en Dynamics (without dynamic linking)
   to 64 bit Windows.
- Removed GEC and Hilde.

Linux libraries:

- Renamed stdenv to StdEnv.
- Ported Directory and MersenneTwister.