v1.7.2

ControlSystems v1.7.2

Diff since v1.7.1

Closed issues:

• wrong frequency response of systems with delay (#824)

Merged pull requests:

• add note on how to obtain Riccati solution to docstring (#821) (@baggepinnen)
• Autolqr (#822) (@baggepinnen)
• add simple robustness analysis (#823) (@baggepinnen)
• add more examples to time response (#825) (@baggepinnen)
• Update Project.toml (#826) (@baggepinnen)