paperjs tutorial
See: https://paperjs.org
Built on top of example webapp from part 2 of the webapps tutorial at http://ucsd-cse-spis-2016.github.io/webapps/webapps-intro-part-2/
ucsd-cse-spis-2016/spis16-webapps-paperjs
Demonstration of paperjs in context of SPIS16 Flask examples
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