Changes from 2.2.1 to 2.2.3

*	Updated to TEA 3.9, TEApot metadata added, bug fixes.

Changes from 2.2.0 to 2.2.1

*	Enhanced stubs API to permit Memchan channels to be created by
	third party extensions. See memchanapi(n).

Changes from 2.2a4 to 2.2.0

*	New channels types random and zero.

*	Improved compilation support for Windows.

Changes from 2.1a1 to 2.2a4

*	Moved to SourceForge

*	Squashed dependency on Pool/MakeDist for generation
	of a source distribution.

*	Made raw CVS checkout a compileable and installable
	distribution.

Changes from 2.1p1 to 2.2a1

*	Two new channel types, 'null' and 'fifo2'. One is a null
	device, the other 2 cross-connected fifos allowing a
	bidirectional stream of data between two interpreters.

*	Restructured the internal buffer system.

Changes from 2.1 to 2.1p1

*	Bug fix in the TEA makefile.

Changes from 2.0 to 2.1

*	Added support for TEA compliant building of this extension,
	see the subdirectory 'tea'. This requires at least Tcl/Tk 8.2.

	The old built facilities (unix, win) still exist and are
	still usable.

*	Added an option to 'memchan', -initial-size, for preallocation
	of bufferspace, proposed by Petteri.Kettunen@picker.fi

*	Added option '-allocated' to 'fconfigure', to allow a user
	to query the number of bytes allocated by the buffers, in
	contrast to -length, which retrieves the number of used bytes.

Changes from 1.9 to 2.0

*	Dropped support for Tcl 7.6. Otherwise equivalent to 1.9.

Changes from 1.8 to 1.9

*	Made **thread-safe** if compiled against a thread-enabled 8.1.
	(Mutex around counter used to generate handles).

*	Small internal reorganization in the 'generic'
	directory (memchan.c split into several files).

*	Headers now usable with a C++ compiler.

*	**New channel type**: fifo. Same as memchan, but with fifo
	characteristics, like sockets and pipes.

	Notes on fifos:
	It was already said that memory channels are useful to transfer
	large amounts of data between procedures or interpreters. The
	difference is this: **memchan's** are block-oriented, **fifo's**
	on the other hand are stream-oriented. With a 'memchan' the producer
	fills the memory channel with the relevant data and then transfers
	control to the consumer(s). With a 'fifo' producer and consumer
	may work in parallel. This is currently only possible for an event-
	driven application, but the moment additional interfaces come up
	allowing me to transfer a channel between threads this concept may
	find its real use for inter-thread communication of bulk information;
	whose transfer through the currently implemented send-oriented
	interface (see 'tclTestThread.c') is awkward. 'fifo's complement
	this interface, they don't replace it.


Changes from 1.7 to 1.8

*	Bugfixes for windows.

*	Added (minimal) test suite.

Changes from 1.6

*	Added 8.0.4 and 8.0.5 to the paths to search.
*	Added stub-awareness to the extension (tcl 8.1 only).

Changes from 1.5

*	Added more intelligence to the 'configure' script. Setting one of
	the variables (--with-tcl-include-dir, --with-tcl-lib-dir), but not
	the other causes automatic definition of the missing part with a
	value derived from the defined directory. Suggested by Larry Virden.
	Added 8.0.3 to the paths to search. Added $exec_prefix/lib to
	the paths to search for the tcl-library.

Changes from 1.4

*	Fixed a bug in 'configure'.
	Found by David Herron <davidh@crl.com>

Changes from 1.3:

*	No changes in functionality, just updated to API changes in tcl 8.0b2

Changes from 1.2

*       Updated to work with tcl 8.0b1

Changes from 1.1:

*       Added support for Windows.
*       Source distribution now available as zip-file too.
*       Binary distribution available for Windows (used MSVC++ 4.2)

Changes from 1.0:

*       cleaned up configuration and removed misleading info (7.5)
*       configure is now aware of tcl 8.0*
*       changed search order used by configure.

*       No, no changes in functionality :-)
