CHANGE: models Template and Session not related any more
CHANGE: js src map removed from git. this will be only used on local env and there is no need to keep it versioned
CHANGE: app.yaml allowing js source map files
CHANGE:
- GA tracking pageView and ready to track everything.
- new form created on footer in order to track session
CHANGE: controller tracking every view change using 'session-tracker' form on page