Dev commit
Dev commit
Made the marker-overlay mostly work
Before starting playing with the width
Finished the marker-overlay
Selector is fully backbone
Calculating the positions in a sane way
Merge branch 'backbone-rewrite'
Merge branch 'master' of github.com:ucam-cl-dtg/urop-2013-handins

Conflicts:
	src/main/webapp/js/handins/pdf-selector.js