prep for 0.19.2 (#1985)

* prep for 0.19.2

* update documentation link

NEWS.md

@@ -1,6 +1,12 @@
 JuMP release notes
 ==================
 
+Version 0.19.2 (June 8, 2019)
+-----------------------------
+
+- Fix a bug in derivatives that could arise in models with nested nonlinear
+  subexpressions.
+
 Version 0.19.1 (May 12, 2019)
 -----------------------------
 

Project.toml

@@ -1,7 +1,7 @@
 name = "JuMP"
 uuid = "4076af6c-e467-56ae-b986-b466b2749572"
 repo = "https://github.com/JuliaOpt/JuMP.jl.git"
-version = "0.19.1"
+version = "0.19.2"
 
 [deps]
 Calculus = "49dc2e85-a5d0-5ad3-a950-438e2897f1b9"

README.md

@@ -42,8 +42,8 @@ Our documentation includes an installation guide, quick-start guide, and referen
 **See [NEWS](https://github.com/JuliaOpt/JuMP.jl/tree/master/NEWS.md) for
 a list of the significant breaking changes in the JuMP 0.19 release.**
 
-**Latest Release**: 0.19.1 (`release-0.19` branch)
-  * [Documentation](http://www.juliaopt.org/JuMP.jl/v0.19.1/)
+**Latest Release**: 0.19.2 (`release-0.19` branch)
+  * [Documentation](http://www.juliaopt.org/JuMP.jl/v0.19.2/)
   * [Examples](https://github.com/JuliaOpt/JuMP.jl/tree/release-0.19/examples)
   * Testing status:
     * TravisCI: [![Build Status](https://travis-ci.org/JuliaOpt/JuMP.jl.svg?branch=release-0.19)](https://travis-ci.org/JuliaOpt/JuMP.jl)