Changes

===Processing.js===

[https://processing-js.lighthouseapp.com/projects/41284/tickets/672-reduce-calls-to-uniformmatrix Reduce calls to uniformmatrix] <br/>

[https://processing-js.lighthouseapp.com/projects/41284/tickets/852-fix-3d-ref-tests Fixed three 3D ref tests] <br/>

[https://processing-js.lighthouseapp.com/projects/41284/tickets/603-static-begincameraendcamera-examples-broken-in-repo Removed broken unnecessary test] <br/>

[https://processing-js.lighthouseapp.com/projects/41284/tickets/361-text-width-example-doesnt-work-in-chrome Fixed texted width example making it valid P5 code] <br/>

[https://processing-js.lighthouseapp.com/projects/41284/tickets/1075-3d-pgraphics-always-draws-below-2d-shapes Made reduced test case] <br/>