DataSifter License
====================
Copyright (C) 2006-2015 Sergey Stoyan. All rights reserved.

This software is provided "as-is," without any express or implied warranty. In no event shall the author be held liable for any damages arising from the
use of this software.

Permission is granted to anyone to use this software for any purpose and to alter and redistribute it, provided that the following conditions are met:

1. All redistributions of source code files must retain all copyright notices that are currently in place, and this list of conditions without modification.

2. All redistributions in binary form must retain all occurrences of the above copyright notice and web site addresses that are currently in place (for example, in the About boxes).

3. If you use this software in a product, an acknowledgment in the product documentation is required. 

4. This software can be used in a commercial product as a linked library only.

5. Modified versions in source or binary form must be plainly marked as originated from this software, and must not be misrepresented as being the original software; particularly they must have another name. 

6. Software originated from this software by using or modifying its source code must be open source and free software. 

To have another license agreement for this program use, you must get a written consent from Sergey Stoyan, stoyan[at]cliversoft.com, sergey.stoyan[at]gmail.com