fix itext savebutton linking
fix typos
fix: don't link itext on copy
add deps image to version control, remove Grunt
add requirejs JSON plugin
fix dependency name
remove unused vendorized underscore
The build pretty much works.

Except for a couple CSS resources getting loaded that should use
embedded versions, this pretty much works.

Solution was to add a 'vellum': '.' path config and then change relative
dependencies from './' to 'vellum/'.