Implements Multiclass hinge loss
Addresses comments
Removes label_vector as required argument. Tests are failing now
Implements vectorized version, Tests pass
Makes code more in line with version at master
Added labels as required parameter in case of multilable problem
Removes labels as a required argument. It's an optional argument
Adds hinge_loss to METRICS_WITH_LABELS in test_common.py
Removes pyflakes and pep8 warnings
Tries to see if indentation in whats_new.rst is resolved
Changes indentation in whats_new.rst
Fixes pep8 and syntax errors
Fixes indentation; Adds docs for labels parameter
Adds a check in case of absence of labels paramter
Makes code consistent
Fixes pep8. Tests pass now
Fixes indentation
Test to illustrate repeating labels
The calculation can be adjusted for missing labels with labels argument
Removes deprecated pos_label and neg_label parameters