Pocketsphinx Python bindings ported from Cython to SWIG

As of today a large change of using SWIG-generated python bindings has been merged into pocketsphinx and sphinxbase trunk.

SWIG is an interface compiler that connects programs written in C and C++ with scripting languages such as Perl, Python, Ruby, and Tcl. It works by taking the declarations found in C/C++ header files and using them to generate the wrapper code that scripting languages need to access the underlying C/C++ code. In addition, SWIG provides a variety of customization features that let you tailor the wrapping process to suit your application.

By this port we hope to increase coverage of pocketsphinx bindings and provide a uniform and documented interface in various language: Python, Ruby, Java.

To test the change checkout sphinxbase and pocketsphinx from trunk and see the examples in pocketsphinx/swig/python/test.