bump version to 0.9.0 and update release-notes.md

Author: stephengold

MinieLibrary/release-notes.md

@@ -1,5 +1,22 @@
 # release notes for the Minie library, DacWizard, and MinieExamples
 
+## Version 0.9.0 released on TBD
+
+ + Added a minimal implementation of soft-body physics, based on Dokthar's
+   prior work, that included `ConfigFlag`, `Icosphere`, `MeshEdge`,
+   `NativeSoftBodyUtil`, `NetGrid`, `PhysicsBody`, `PhysicsSoftBody`,
+   `PhysicsSoftSpace`, `RayTestFlag`, `Sbcp`, `SoftBodyWorldInfo`,
+   `SoftPhysicsAppState`, `SoftDebugAppState`, `SoftBodyDebugControl`, and
+   `TestSoftBody`.
+ + Re-publicized the `update()` method and finalized the `getSpaceId()` method
+   of `PhysicsSpace`.
+ + Moved the `isInWorld()` method from `PhysicsRigidBody`
+   to `PhysicsCollisionObject`.
+ + Moved `TubeTreeMesh` class the `jme3utilities.minie.test.mesh` package.
+ + Used `BinaryExporter.saveAndLoad()` to simplify load/save testing.
+ + Updated the native libraries to version 1.0.61 of `Libbulletjme`.
+ + Based on version 2.27 of the `jme3-utilities-heart` library.
+
 ## Version 0.8.1 released on 28 April 2019
 
  + API changes:

MinieLibrary/src/main/java/jme3utilities/minie/MinieVersion.java

@@ -59,6 +59,6 @@ private MinieVersion() {
      * @return branch and revision (not null, not empty)
      */
     public static String versionShort() {
-        return "master 0.8.1+1";
+        return "master 0.9.0";
     }
 }

common.gradle

@@ -33,7 +33,7 @@ ext {
     heartVersion = '2.27.0'
     jme3utilitiesuiVersion = '0.7.2'
     jmonkeyengineVersion = '3.2.3-stable'
-    minieVersion = '0.8.1'
+    minieVersion = '0.9.0'
 }
 
 repositories {