Added PathPreviewRenderer to draw a Preview of the current Camera Path into the World

Added KeyframesModifyEvent to be dispatched whenever the ReplayHandler's Keyframe List is changed
Refactored Event package
Reworked Settings GUI

src/main/java/eu/crushedpixel/replaymod/renderer/SafeEntityRenderer.java

@@ -14,6 +14,7 @@ public class SafeEntityRenderer extends EntityRenderer {
         try {
             super.updateCameraAndRender(partialTicks);
         } catch(Exception e) {
+            e.printStackTrace();
         } //This is plain easier than doing proper error prevention.
         //If Johni reads this, don't think I'm a bad programmer... Just a lazy one :P
     }