angular-bootstrap templates

This PR solves the problem exposed in #26, so angular-bootstrap templates are not copy/pasted anymore in our moondash templates, which is obviously an improvement.
But, instead of bundlizing them into a moondash-vendor-templates.js file, I had to put them in our existing moondash-templates.js bundle and declare them under the `moondash` angular app (if not, it breaks, and that's quite confusing).
I am not clear about how we reference those angular-bootstrap templates from our code, so that's maybe why I am confused here.
If you know how to declare those templates outside moondash but still be able to use them properly, I will change the bundling, but if you don't, I propose you merge it the way it is for now.