Rename files for python bindings and dependencies.
Move source files.
Merge pull request #141 from AlexanderFabisch/refactor_python_bindings

Refactor python bindings
Merge branch 'master' of github.com:OpenANN/OpenANN into kmeans
KMeans implements Transformer interface.
Python bindings for sampleRandomPatches().
Add test case for k-means.
Merge branch 'kmeans' of github.com:AlexanderFabisch/OpenANN into kmeans