Update RequireJS to 2.1.11

An explicit version for the requirejs package has been added to ensure
the grunt-contrib-requirejs package uses the version specified. The
requirejs template options have been updated to use the local copy rather
than the bundled one with the package.

Fix #501

Signed-off-by: Byron Ruth <b@devel.io>
Update grunt jshint and watch NPM packages

Signed-off-by: Byron Ruth <b@devel.io>