Cython bang operator overloading.

--HG--
extra : rebase_source : 410f9adcda3afa4a12bb25794f24c1fb96601608

Add support for tox (http://tox.testrun.org/) and Travis CI (http://travis-ci.org/)

Fixed a vcvarsall.bat error on win32/Py2.7 when trying to compile with mingw.

make declarations of arrayarray.h functions 'static' as they are only used internally as utility code

fix the wrapper setup for inherited special methods by inheriting them only in PyPy (as a work-around for its broken PyType_Ready())

fixes for gcc error on "initializer element is not constant"

allow passing additional sources into cythonize() through the 'distutils: sources' option in the source file

statically inherit slot methods from parent types - PyType_Ready() would normally fix this but it's incomplete in PyPy