Merge branch 'master' into delay_work

Author: olof3

Project.toml

@@ -2,7 +2,7 @@ name = "ControlSystems"
 uuid = "a6e380b2-a6ca-5380-bf3e-84a91bcd477e"
 authors = ["Dept. Automatic Control, Lund University"]
 repo = "https://github.com/JuliaControl/ControlSystems.jl.git"
-version = "0.5.8"
+version = "0.5.9"
 
 [deps]
 Colors = "5ae59095-9a9b-59fe-a467-6f913c188581"
@@ -26,6 +26,6 @@ DelayDiffEq = "5.6"
 IterTools = "1.0"
 LaTeXStrings = "1.0"
 OrdinaryDiffEq = "5.2"
-Plots = "0.24, 0.25, 0.26, 0.27, 0.28, 0.29"
+Plots = "0.24, 0.25, 0.26, 0.27, 0.28, 0.29, 1.0"
 Polynomials = "0.6.0"
 julia = "1.0"