Merge pull request #139 from JuliaDiffEq/compathelper/new_version/2020-03-18-17-04-35-588-4259186344

CompatHelper: bump compat for "Distributions" to "0.23"

Author: ChrisRackauckas

Project.toml

@@ -63,7 +63,7 @@ DiffEqOperators = "4.3"
 DiffEqParamEstim = "1.8"
 DiffEqPhysics = "3.2"
 DifferentialEquations = "6.8"
-Distributions = "0.21, 0.22"
+Distributions = "0.21, 0.22, 0.23"
 DoubleFloats = "0.9, 1.0"
 ForwardDiff = "0.10"
 Gadfly = "1.1"