Copyright (c) 2015 Anatoli Arkhipenko.
All rights reserved.

THIS SOFTWARE IS PROVIDED FREE OF CHARGE ACCORDING TO BSD LICENSE:

Redistribution and use in source and binary forms are permitted
provided that the above copyright notice and this paragraph are
duplicated in all such forms and that any documentation,
advertising materials, and other materials related to such
distribution and use acknowledge that the software was developed
by Anatoli Arkhipenko. The name of the auther may not be used 
to endorse or promote products derived from this software without 
specific prior written permission.

THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.