Make bootstrap.js optional
Make bootstrap.js optional

Only need to include bootstrap.js when the file nav bar element is
included in the html template.

avorio/Neon.js,avorio/Neon.js,DDMAL/Neon.js,DDMAL/Neon.js,DDMAL/Neon.js,avorio/Neon.js,DDMAL/Neon.js,avorio/Neon.js