Merge pull request #30 from bioidiap/refactoring_2016

bob/bio/base/__init__.py

bob/bio/base/database/Database.py

bob/bio/base/database/DatabaseBob.py

bob/bio/base/database/DatabaseFileList.py

bob/bio/base/database/__init__.py

bob/bio/base/database/utils.py

bob/bio/base/test/dummy/database.py

bob/bio/base/test/dummy/filelist.py

bob/bio/base/test/dummy/fileset.py

bob/bio/base/test/test_databases.py

bob/bio/base/test/test_scripts.py

bob/bio/base/tools/FileSelector.py

bob/bio/base/tools/command_line.py

bob/bio/base/tools/preprocessor.py

buildout.cfg

requirements.txt