fixed class visibility

com/danitheskunk/skunkworks/GLRenderContext.java

@@ -2,7 +2,7 @@ package com.danitheskunk.skunkworks;
 
 import static org.lwjgl.opengl.GL11.*;
 
-public class GLRenderContext implements IRenderContext{
+class GLRenderContext implements IRenderContext{
 	private GLTextureAtlas atlas;
 
 	public GLRenderContext(GLTextureAtlas atlas) {

com/danitheskunk/skunkworks/GLTexture.java

@@ -1,6 +1,6 @@
 package com.danitheskunk.skunkworks;
 
-public class GLTexture implements ITexture {
+class GLTexture implements ITexture {
 	private Recti texArea;
 	Image img; //for re-blitting onto texture atlas
 

com/danitheskunk/skunkworks/GLWindow.java

@@ -12,7 +12,7 @@ import static org.lwjgl.glfw.GLFW.*;
 import static org.lwjgl.opengl.GL11.*;
 import static org.lwjgl.system.MemoryUtil.NULL;
 
-public class GLWindow implements IWindow {
+class GLWindow implements IWindow {
 	private boolean debug;
 	private Engine engine;
 	private GLRenderContext renderContext;