- avoid problems with missing README file while running autogen.sh
- remove version check from SWIG (>= 1.3) to allow build with current environment
- tested with swig 2.0.7 and did not identify a problem
- update to current swig python autoconf macros
- switch pefered Python version to 3 (instead of python2)
- support swig generation for python3

still open (for python3):
no support for argument type FILE
therefore, some libhid functions are not working but raising an exception
- port hidwrap to Python 3
Merge pull request #1 from romor/master

fixed build problems