9.4.2007: updated version (1.191). The most important addition are support
for spin operators and construction of basis with various conserved quantum
numbers (qbasis, sbasis, nonebasis, spinlessbasis). The package
should now work with Mathematica 6.

5.6.2007: updated version (1.168). In addition to much improved
documentation (now fully integrated in Mathematica Help Browser) and
additional examples, a number of new features was implemented.

16.11.2006: updated version (1.76).

14.7.2006: first public release of the library.

