New energies

nifty4/library/__init__.py

-from .wiener_filter_energy import WienerFilterEnergy
-from .wiener_filter_curvature import WienerFilterCurvature
+from .los_response import LOSResponse
 from .noise_energy import NoiseEnergy
 from .nonlinear_power_energy import NonlinearPowerEnergy
 from .nonlinear_wiener_filter_energy import NonlinearWienerFilterEnergy
+from .nonlinearities import Exponential, Linear, PositiveTanh, Tanh
 from .poisson_energy import PoissonEnergy
-from .nonlinearities import Exponential, Linear, Tanh, PositiveTanh
-from .los_response import LOSResponse
+from .unit_log_gauss import UnitLogGauss
+from .wiener_filter_curvature import WienerFilterCurvature
+from .wiener_filter_energy import WienerFilterEnergy