PApplet rectMode() and imageMode() method calls moved from Quickshow class to callback draw() methods.
Added second markers to visualTimeline and audioTimeline classes.
Changed all accesses of static fields and methods to static accesses (eg from parent.println() to Quickshow.println()).
Cleaned up import statements.

audioTimeline.java
-Replaced min() method call with Math.min() call.
-Removed unused toggle() method.