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

@kpovetkin Yes we have usecase where we compile html templates as js modules (angular-template-cache). The string does not necessarily have to be in DOM alone, it could be in my directive as constant and might be displayed based on some condition. I am not saying we will have a use case of 'use strict' being a string I am just saying adding and removing that should be left to individual developers who are writing any module and should not be in the build process.