v0.15.1

Flux v0.15.1

Diff since v0.15.0

Merged pull requests:

• Re-write "basics" page of docs (#2535) (@mcabbott)
• Adding initialstates function to RNNs (#2541) (@MartinuzziFrancesco)
• Update NEWS.md highlighting breaking changes (#2542) (@CarloLucibello)
• relax identity test for devices (#2544) (@CarloLucibello)
• fix Flux.@functor (#2546) (@CarloLucibello)

Closed issues:

• Flux.@functor is broken on 0.15 (#2545)