nifty library: bump version to 0.9.22 and update release-notes.md

Author: stephengold

common.gradle

@@ -31,7 +31,7 @@ gradle.projectsEvaluated {
 ext {
     // current versions of various libraries
     heartVersion = '7.0.0'
-    jme3utilitiesniftyVersion = '0.9.21'
+    jme3utilitiesniftyVersion = '0.9.22'
     jme3utilitiesuiVersion = '0.9.5'
     jme3utilitiesxVersion = '0.2.23-SNAPSHOT'
     jmonkeyengineVersion = '3.4.0-stable'

nifty/release-notes.md

@@ -1,6 +1,11 @@
 # release log for the jme3-utilities-nifty library and related tests
 
-## Version 0.9.21 released on TBD
+## Version 0.9.22 released on TBD
+
+Base on version 7.0.0 of the Heart Library and version 0.9.5 of
+the jme3-utilities-ui library.
+
+## Version 0.9.21 released on 1 July 2021
 
 Add the "dialog", "submenu", and "tool" icon textures, from Maud.
 

nifty/src/main/java/jme3utilities/nifty/LibraryVersion.java

@@ -60,6 +60,6 @@ private LibraryVersion() {
      * @return branch and revision (not null, not empty)
      */
     public static String versionShort() {
-        return "master 0.9.21";
+        return "master 0.9.22";
     }
 }