Replace /PencilCode/ with /jamessynge/

Still need to setup travis-ci to work with this repo.
Renamed repo geom-pencilcode-site, so update links
Change to trigger travis to build.
Merge remote-tracking branch 'upstream/master'
Add draw-protractor.js for use in geometry debugger.
Initial changes to support showing a protractor.
Add "Measure" button, initial version of code to get turtle location, then draw.
Fix broken call to require().
Add a findTurtle method on the debug object in the iframe and on the ide object in the main window.
Re-enable Measure button. Add require support to draw-protractor.js.
Merge branch 'master' of https://github.com/jamessynge/geom-pencilcode-site
wire turtle position up to drawProtractor
Merge branch 'master' of https://github.com/jamessynge/geom-pencilcode-site
Protractor appears!
Make the measure button toggle the protractor visibility.
Track mouse movement while showing protractor.
Merge branch 'master' of https://github.com/jamessynge/geom-pencilcode-site

Conflicts:
	site/top/src/editor-view.js
Display dir/distance label. (No actual directions harmed).
Measuring is working!!! Woohoo!!!
Restore README.md to the pencilcode-site version.