Add visual indicator in Bootstrapper for files used by app

[toddanglin]

(Idea generated from discussion in Issue #21)

Perhaps as an enhancement the Bootstrapper should visually indicate which of the listed Project/Library files will be loaded on page (because they're part of the dependency tree) and which will not.

A visual distinction would help quickly reveal if a file you do (or don't) want loaded on your page is properly configured (without being forced to manually examine a bunch of dependencies across different files).

Without this feature, you must examine the dependencies of each file (starting with HTML) to really understand which of the files listed in Boostrapper your page will attempt to load.