v1.2.1

QuantumOptics v1.2.1

Diff since v1.2.0

Merged pull requests:

• Fix a docstring typo (#422) (@Sagnac)
• Don't specialize integrate on df (#423) (@amilsted)

Closed issues:

• Normalization Issue in the semiclassical solvers (#414)
• Cannot precompile QuantumOptics in Jupyter (#421)