PEP8
OutputWriteAnnotation bug fix

do not assume writeAnnotation is called only once (it is not the case)
Smarter gurobipy import procedure
Major ILPClusteringMixin update
Bug fix: Annotation.label_timeline does not support "copy" argument
Unknown is now imported at pyannote root
gurobi2 work in progress
Dupuy2012 ILP clustering model
Bug in case of missing similarity
Bug fix in case of delta is of type np.float
PEP 8
Better pyannote.cli.__all__
PEP 8
PEP 8
PEP 8
Segment == Named tuple

(why reinvent the wheel ?)
Timeline == banyan.SortedSet
Bug fix: DataFrame.sort_index returns None when called with inplace=True
Use new Timeline.union() in place of Timeline.__add__
Use new Timeline.add() in place of Timeline.__iadd__()