Added missing "bower.json" from "master" branch
First successful (but ugly) display of Forums data, working both in "compiled JS" and "runtime JS loading"

* added "Database" and "Cache" Core Services
* we have a brand new "app bootstrap" JS process. Not too complex, and should be flexible enough for our different types of Plugins
* added Handlebars template management
* added automatic JS compilation entry files management
* added a simple JS App Router