[use_strict_ngui] Bundled application JS file wrapped for "use strict" usage

If I have some use case where I my string that is going to displayed in DOM has 'use strict' would this remove that too? I feel this would be an overkill. If developers introduce new file (or any js functionality) then we see if they have a ```use strict``` if not we enforce it in the review time. I feel this is a little intrusive. 

We wrap use strict in the IIFE that has any angular code and that should be fine. I guess.