change ylim on ROC and EPC plots to better show results of biometric systems with very high accuracy

Not using bob.measure.plot anymore; replaced all tight_layout (which generate warnings) with 'bbox_inches=tight'

Merge branch '68-roc-and-cmc-curves-do-not-follow-the-standard-of-the-handbook-of-face-recognition' of https://gitlab.idiap.ch/bob/bob.bio.base into 68-roc-and-cmc-curves-do-not-follow-the-standard-of-the-handbook-of-face-recognition

Conflicts:
	bob/bio/base/script/evaluate.py

Improve the evaluate script plots

See merge request !88

Resolve "ZT files are processed even when no ZT processing is wanted"

Closes #67

See merge request !80

Removed TeX dependency

Closes #80

See merge request !81

Corrected INFO log when training enroller

See merge request !87

Merge branch '67-zt-files-are-processed-even-when-no-zt-processing-is-wanted' of https://gitlab.idiap.ch/bob/bob.bio.base into 67-zt-files-are-processed-even-when-no-zt-processing-is-wanted

Conflicts:
	bob/bio/base/test/test_scripts.py

Add a function to read features with generators

See merge request !82

Implemented five-column score file -- only during concatenation

Closes #85

See merge request !86

Docs url fix

See merge request !85

Improve suggestion on variable naming convention to match python's (closes #81)

Closes #81

See merge request !83