Add module wrapping code to Sentry per T513.

Currently ResourceLoader outputs something like

mw.loader.implement("modulename",function($,jQuery){<minified source code>});

This should be replaced with

mw.loader.implement("modulename",Raven.wrap(function($,jQuery){<minified source code>}));

(or the equivalent done inside mw.loader.implement) and Raven should be loaded early enough for this to work.

This might require adding a new hook or two to ResourceLoader.