deprecate :stop from optimizers; housekeeping

src/Flux.jl

@@ -23,7 +23,6 @@ using .Optimise: @epochs
 export SGD, ADAM, ADAMW, AdaMax, Momentum, Nesterov,
        RMSProp, ADAGrad, ADADelta, AMSGrad, NADAM
 
-
 include("utils.jl")
 include("onehot.jl")
 include("treelike.jl")
@@ -38,5 +37,4 @@ include("data/Data.jl")
 
 @init @require CuArrays="3a865a2d-5b23-5a0f-bc46-62713ec82fae" include("cuda/cuda.jl")
 
-end # module
-
+end # module

src/optimise/Optimise.jl

@@ -20,4 +20,4 @@ using Flux.Tracker: TrackedArray
 Param(x::TrackedArray) = Param(x.data, x.grad)
 # Base.convert(::Type{Param}, x::TrackedArray) = Param(x.data, x.grad)
 
-end
+end

src/optimise/train.jl

@@ -60,6 +60,7 @@ function train!(loss, data, opt; cb = () -> ())
       @interrupts back!(l)
       opt()
       cb() == :stop && break
+      @deprecate :stop Flux.stop()
     catch ex
       if ex isa StopException
         break