1This software is provided 'as-is', without any express or implied warranty. In 2no event will the authors be held liable for any damages arising from the use of 3this software. 4 5Permission is granted to anyone to use this software for any purpose, including 6commercial applications, and to alter it and redistribute it freely, subject to 7the following restrictions: 8 91. The origin of this software must not be misrepresented; you must not claim 10 that you wrote the original software. If you use this software in a product, 11 an acknowledgment in the product documentation would be appreciated but is 12 not required. 13 142. Altered source versions must be plainly marked as such, and must not be 15 misrepresented as being the original software. 16 173. This notice may not be removed or altered from any source distribution.