Fix release publishing failure.

Also add the version specifier to the addon preferences. When v0.16
final is released, remove the beta specifier.

CMakeLists.txt

@@ -17,7 +17,7 @@ cmake_minimum_required(VERSION 3.12)
 
 set(_PROJECT_INFO
     korman
-    VERSION 0.15
+    VERSION 0.16
     DESCRIPTION "Blender plugin for creating ages for Cyan Worlds' proprietary Plasma engine and its open source variant, CyanWorlds.com Engine."
     LANGUAGES CXX # This should probably be NONE, but we need the compiler for string_theory tests
 )

korman/__init__.py

@@ -23,6 +23,7 @@ from . import operators
 bl_info = {
     "name":        "Korman",
     "author":      "Guild of Writers",
+    "version":     (0, 16),
     "blender":     (2, 79, 0),
     "location":    "File > Import-Export",
     "description": "Exporter for Cyan Worlds' Plasma Engine",

release.ps1

@@ -42,6 +42,7 @@ function Invoke-GitHubRequest($Method, $Uri, $Body, $ValidResults) {
         -Uri "$Uri" `
         -Method "$Method" `
         -Headers $RequestHeaders `
+        -ContentType "application/json" `
         -Body @(ConvertTo-JSON $Body) `
         -SkipHttpErrorCheck
     Test-GitHubResult `