Removed temp stuff from setup.py, cleaning of sparse coding algorithms

@amohammadi can you, please, review this, solves most of the issues in the previous MR.

bob/pad/face/config/extractor/video_hist_of_sparse_codes.py

-#!/usr/bin/env python
-
-from bob.pad.face.extractor import VideoHistOfSparseCodes
-
-
-#=======================================================================================
-# Define instances here:
-
-METHOD = "mean"
-extractor_mean = VideoHistOfSparseCodes(method = METHOD)
-
-
-METHOD = "hist"
-extractor_hist = VideoHistOfSparseCodes(method = METHOD)
-
-