POI 3.7 Beta3 - State of XSLFSlide.getShapes()

[Scott Stroud]

I created a pptx that had slides with an (embedded) image, chart, and clip art. 
 I then read that pptx and POI does not seem to be getting those out via 
XSLFSlide.getShapes().  POI does seem to be looping through the slides fine 
though.  I also noted that if I set slide notes those are not present in POI as 
well.  Any insight is appreciated.  Thanks.