Fixing a bug where applied armeture has no skeleton attached.

git-svn-id: https://jmonkeyengine.googlecode.com/svn/trunk@9791 75d07b2b-3a1a-0410-a2c5-0572b91ccdca

engine/src/blender/com/jme3/scene/plugins/blender/modifiers/ArmatureModifier.java

@@ -187,7 +187,7 @@ import com.jme3.util.BufferUtils;
 		if (invalid) {
 			LOGGER.log(Level.WARNING, "Armature modifier is invalid! Cannot be applied to: {0}", node.getName());
 		}// if invalid, animData will be null
-		if (animData == null) {
+		if (animData == null || skeleton == null) {
 			return node;
 		}