Minifying and bundling causing errors

[piercemcgeough]

When using grunt uglify (along with many other files) the prettyphoto causes an error Uncaught SyntaxError: Delete of an unqualified identifier in strict mode.

This in turn gives reference errors app.js?v=84ff55a…:61 Uncaught ReferenceError: $ is not defined.

I read on SO that an object cannot be directly deleted.

Delete is used on line 486 delete settings;.

I changed this to settings = undefined; but then end up getting the following error. Uncaught ReferenceError: doresize is not defined at r.fn.init.$.fn.prettyPhoto