v0.2.24

QuantumCumulants v0.2.24

Diff since v0.2.23

Merged pull requests:

• extra_indices error (#180) (@ChristophHotter)
• fix sum in jump operator (#182) (@ChristophHotter)
• added test for DoubleSum scaling (#183) (@ChristophHotter)
• real numbers (#184) (@ChristophHotter)