v1.4.9.1

v1.4.9.1

New features

1. improve banner
2. extend ostap/__init__.py.in
3. add new test for splot test_fitting_splot.py
4. extent option minos, allow to specify variable name or sequence of names

model.fitTo ( ....   , minos = 'S', ...)
model.fitTo ( ....   , minos = ('S','B') , ... )

1. add new test/example test_fitting_components2.py
   `

Backward incompatible changes

Bug fixes:

1. fix truediv for python3 in several files