JOGL/NEWT: Animator fixes

Consider use cases with many drawables and no drawables at start,
this had to be reflected all over this patch set, implementation,
usage and test cases.

- GLAnimatorControl
  - refine API doc / states
  - add 'void remove(GLAutoDrawable drawable);'

- Animator*:

  - using RecursiveLock 'stateSync' for all actions out of the big synchronized (animator) block:

     - get status methods (thread, isPaused, ..), hence no more synchronized

     - display drawables change, utilizing synced ArrayList swap

    This removes the need for volatiles usage shouldPause/shouldStop within the display method.

  - added blocking wait for state change for add(GLAutoDrawable)/remove(GLAutoDrawable) method

  - remove flawed double checked locking in anim thread (pause/idle condition)

  - thread is now a daemon thread, hence it won't hinder the JVM from shutdown

  -

- Animator use change:

  - Always resume after pause, except in case of final destroy -> NEWT invalidate / GLCanvas,
    this considers use cases with many drawables and no drawables at start.

  - GLDrawableHelper: Don't pause at implicit dispose()

1 files changed, 1 insertions, 1 deletions

diff --git a/src/jogl/classes/javax/media/opengl/GLCapabilities.java b/src/jogl/classes/javax/media/opengl/GLCapabilities.java
index 3d2e2bcc9..82f83dc82 100644
--- a/src/jogl/classes/javax/media/opengl/GLCapabilities.java
+++ b/src/jogl/classes/javax/media/opengl/GLCapabilities.java
@@ -59,7 +59,7 @@ public class GLCapabilities extends Capabilities implements Cloneable, GLCapabil
   private boolean doubleBuffered = true;
   private boolean stereo         = false;
   private boolean hardwareAccelerated = true;
-  private int     depthBits      = 24;
+  private int     depthBits      = 16;
   private int     stencilBits    = 0;
   private int     accumRedBits   = 0;
   private int     accumGreenBits = 0;