v0.6.4

Zygote v0.6.4

Diff since v0.6.3

Closed issues:

• How to calculate Jacobians (or just derivatives of vector functions) with Zygote? (#51)
• Jacobian and Hessian (#98)
• Jacobian in Zygote with Params (#413)
• Second derivative of univariate functions: hessian() only takes arrays (#891)
• Gradient of sum (#900)
• jacobian not implemented in v0.6.3 ? (#910)
• Zygote changes type of Interpolations within a function (#914)

Merged pull requests:

• fix cat with Val dims (#881) (@marius311)
• Add jacobian, at last? (#890) (@mcabbott)
• add map/broadcast/algebra/iteration/dict interface for Grads (#902) (@CarloLucibello)
• Use GitHub package server in CI (#904) (@DhairyaLGandhi)
• add more set interface to Params (#907) (@CarloLucibello)