Fix JogAmp JOGL 2.x.x -> 2.3.2 API changes

Signed-off-by: Xerxes Rånby <xerxes@gudinna.com>

Author: xranby

src/gov/nasa/worldwind/render/DrawContextImpl.java

@@ -171,12 +171,12 @@ public final GLContext getGLContext()
 
     public final int getDrawableHeight()
     {
-        return this.getGLDrawable().getHeight();
+        return this.getGLDrawable().getSurfaceHeight();
     }
 
     public final int getDrawableWidth()
     {
-        return this.getGLDrawable().getWidth();
+        return this.getGLDrawable().getSurfaceWidth();
     }
 
     public final GLDrawable getGLDrawable()

src/gov/nasa/worldwind/render/TextRenderer.java

@@ -1951,7 +1951,6 @@ public void run() {
 
         @Override
         public void dispose(GLAutoDrawable drawable) {
-            glu.destroy();
             glu=null;
             frame=null;
         }