[many] More clean-ups and code re-organization

README.rst

bob/bio/vein/algorithms/HammingDistance.py

bob/bio/vein/algorithms/MiuraMatch.py

bob/bio/vein/algorithms/__init__.py

bob/bio/vein/configurations/__init__.py

bob/bio/vein/configurations/algorithms.py

bob/bio/vein/configurations/databases/__init__.py

bob/bio/vein/configurations/databases/utfvp.py

bob/bio/vein/configurations/databases/vera.py

bob/bio/vein/configurations/extractors/__init__.py

bob/bio/vein/configurations/extractors/lbp.py

bob/bio/vein/configurations/extractors/maximum_curvature.py

...io/vein/configurations/extractors/normalised_crosscorr.py

.../vein/configurations/extractors/repeated_line_tracking.py

bob/bio/vein/configurations/extractors/wide_line_detector.py

bob/bio/vein/configurations/grid/__init__.py

bob/bio/vein/configurations/grid/demanding.py

bob/bio/vein/configurations/grid/gbu.py

bob/bio/vein/configurations/grid/gpu.py

bob/bio/vein/configurations/grid/gpu2.py