Forever branches

Hey guys,

Shall we clean up some branches?? Look at the list below. Some are two years old:

• https://gitlab.idiap.ch/bob/bob.bio.base/tree/train-on-models
• https://gitlab.idiap.ch/bob/bob.bio.base/tree/manuels
• https://gitlab.idiap.ch/bob/bob.bio.base/tree/52-file-list-database-is-not-tested-anymore
• https://gitlab.idiap.ch/bob/bob.bio.base/tree/doc-clean-up
• https://gitlab.idiap.ch/bob/bob.bio.base/tree/bio
• https://gitlab.idiap.ch/bob/bob.bio.base/tree/keyword
• https://gitlab.idiap.ch/bob/bob.bio.base/tree/linestyles
• https://gitlab.idiap.ch/bob/bob.bio.base/tree/amir