Changes:
* better handling of strerror_r support.
* corrected copyright. Since cc libs were moved to bayonne and commoncpp
had been added, ALL of ucommon (including commoncpp2) are L-GPL, not just
the "core" library.
* more standardized manpages
* improved shell::detach support and new pdetach utility
* fsys generic basic file operations
* commoncpp file and dso compatibility support added
- Add LICENSE (LGPL3)
- Move binaries to ${PREFIX}/bin/ucommon to avoid clashes (ucommon binaries
have pretty standard names)