Replace symlinks with location detection

 - rename js/app.js to js/mcda-web.js and detect that script's location
 - define an mcdaRootPath constant that is used to locate angular
   templates
Expand thrombolytics example

 - add value tree, criteria descriptions, and units of measurement
Rename bottom of value tree to "criteria"
Checkin new mcda-web
Fixes to the bower configuration
Merge branch 'develop' of github.com:DanielReid/mcda-elicitation-web into develop