2.0
	- Made asymptotic improvements at the expense of a constant factor. It
should now be faster for numbers greater than 30 or so digits but slower
for numbers less than that.
	- Added ability to type expressions instead of plain numbers. For example,
the program will now factor "2^30-1" instead of making you type "1073741823".
	- Added capability to run pyecm in parallel.
	- Added command line switches, such as a verbose mode and an ability to
select sigma (an internal parameter) randomly.
	- Improved compatibility with installations lacking gmpy and/or psyco.

1.2.2:
	- Made pyecm a tiny bit faster
	- Fixed the bug where the version is reported incorrectly as 1.2
	- Included the GPL with the source

1.2.1:
	- Fixed a silly typo in fastprime. This should make it a little bit faster.
	- Removed silly spaces after lines

1.2:
	- pyecm now uses gmpy if it's installed on your system (highly recommended:
HUGE speed increase when used). If it's not installed, it continues as normal.

1.1.2:
	- Silly bug with not using psyco fixed

1.1.1:
	- Minor bug fixes
	- Minor speed improvement

1.1:
	- More speed improvements

1.0:
	- Massive speed improvements

0.2:
	- Many bugfixes
	- Speed improvements

0.1:
	- Initial release