All iterative ArrayList accesses changed from get() method to ListIterator access.
Trimmed whitespace.
Added method headers.

visualTimeline.java
-Changed instance variable image to method variable image in generateThumbnails() and calculateTimeLineBounds() methods.
-Removed single-use variable variable new_width in generateThumbnails() method.

audioTimeline.java
-Changed instance variable audioClip to generateWaveForms() method variable audioClip.

visualThumbnailUI.java
-Changed instance variable p to drawThumbNails() method variable.