Updated error message when the key size is incorrect
Added CAST256.php include
Added CAST-256
Added notes on various bug fixes, new ciphers, and other changes for
version 0.5
Removed reference to 3way from comment
Remove static call to parent:: and added static call to Core:: in
splitBytes()
Fixed the way uInt() & uInt32() convert to unsigned Ints. Created
workaround to allows rotateBitsLeft32() and rotateBitsRight32() to work.
Initial version of Cast 256 implementation
Fixed a major bug where CTR mode was not compatible with the mcrypt
implementation after a byte was incremented and reached 0xff