Merge pull request #30 from SciML/compathelper/new_version/2021-01-28-08-02-05-366-1753483809

CompatHelper: bump compat for "ModelingToolkit" to "5.1"

Author: ChrisRackauckas

Project.toml

@@ -11,7 +11,7 @@ Reexport = "189a3867-3050-52da-a836-e630ba90ab69"
 [compat]
 DiffEqBase = "6.5"
 MATLAB = "0.7, 0.8"
-ModelingToolkit = "1.4.2, 2.0, 3.0, 4.0"
+ModelingToolkit = "1.4.2, 2.0, 3.0, 4.0, 5.1"
 Reexport = "0.2, 1.0"
 julia = "1"