[C++-sig] low-hanging fruit

[David Abrahams]

There are no non-special methods listed in

>>> help(long)

so I went ahead and implemented the Python long wrapper. Tests in
libs/python/test/long.[cpp/py]

It should be similarly easy for someone to write the Python int wrapper

hint-hint-ly y'rs,
dave

+---------------------------------------------------------------+
                  David Abrahams
      C++ Booster (http://www.boost.org)               O__  ==
      Pythonista (http://www.python.org)              c/ /'_ ==
  resume: http://users.rcn.com/abrahams/resume.html  (*) \(*) ==
          email: david.abrahams at rcn.com
+---------------------------------------------------------------+