<> Permission is granted to anyone to use this software for any purpose on any computer system, and to redistribute it freely, subject to the following restrictions: <> The author is not responsible for the consequences of use of this software, no matter how awful, even if they arise from defects in it. <> The origin of this software must not be misrepresented, either by explicit claim or by omission. <> Altered versions must be plainly marked as such, and must not be misrepresented as being the original software.