Merge pull request #584 from TuringLang/csp/flux-bug

Changed using Flux: Tracker to using Flux.Tracker

Author: mohamed82008

src/Turing.jl

@@ -29,7 +29,7 @@ end
 import Base: ~, convert, promote_rule, rand, getindex, setindex!
 import Distributions: sample
 import ForwardDiff: gradient
-using Flux: Tracker
+using Flux.Tracker
 import MCMCChain: AbstractChains, Chains
 @init @require DynamicHMC="bbc10e6e-7c05-544b-b16e-64fede858acb" @eval begin
     using DynamicHMC, LogDensityProblems