Fixing Twitter Bootstrap and Eclipse Javascript Errors

I've been meaning to play with Twitter Bootstrap and some of it's other associated projects like Font Awesome lately and decided to see if I could integrate into a sample application I'm building.  I'm using an SpringSource Tool Suite 2.9.1 which is based on Eclipse 3.7.2.  When using a Dynamic Web project type and bringing in the assets directory from the Bootstrap download into my WebContent directory, I kept getting JavaScript errors, lots of them.

I realized that it was simply complaining about a single prettify minimized js file that went away if I got the unminimized version.  But I'm stubborn so I refused to let Eclipse win with this work-around...

At first I thought it was related to the Validator or a Builder.  But then I noticed that there was a JavaScript reference to a runtime and I checked the Facets.  Sure enough there is a JavaScript facet that you can unlock and then uncheck.

Since I am not using that capability now, removing that Facet seemed to do the trick once I applied and executed a Project -> Clean, but at least on one occasion I actually had to rename/replace the javascript file that was causing problems to be marked as directed to in this Stack Overflow thread.  Once that was out of the way I now had a nice Bootstrap example ready to customize.  I simply copied one of the html files like starter-template.html or hero.html over from the Bootstrap examples directory and fixed the asset references with a replace-all.  If you have a better approach to get Bootstrap and Eclipse to play nicely, I'd love to hear about it.