fix compilation error

JME3-JFX/src/main/java/com/jme3x/jfx/JmeFxContainer.java:468: error: method does not override or implement a method from a supertype
				@Override
added initial DragImage support.
-> missing draglocation useage
cleanups

Signed-off-by: unknown <boernert@PC199.verwaltung.uni-mannheim.de>
forgot test image
restore correct fix
Merge remote-tracking branch 'upstream/master'

Conflicts:
	src/main/java/com/jme3x/jfx/JmeFxContainer.java
	src/main/java/com/jme3x/jfx/JmeFxDNDHandler.java
Provide support to display a SimpleApplication into a JavaFX's ImageView.

The core is SceneProcessorCopyToImageView + JmeContextOffscreenSurface
JmeForImageView is a helper class use to hide common boilerplate (I create it after my 3rd setup).
TestDisplayInImageView is a sample where user can change background color, change framerate (1-200), show/hide stats.
Merge pull request #12 from davidB/master

Provide support to display a SimpleApplication into a JavaFX's ImageView.

As it only adds files, merged since it cannot break stuff.