This is a legacy commit from before 2015-03-01.
It may be incomplete as well as inconsistent.
See COPYING.legacy and README.history for details.

After reorganizing the source code, the required header files must be included
in the appropriate places.

Accomplished:
 - source code compiles without errors

Missing:
 - doxygen documentation must be reorganized
 - README file must be completed
 - snapshot package rules must adjusted
 - library must be tested with application programs