Remove webapp/assets, index.html and register.html from version control(will only be generated).
Modify(WEB-INF/appengine-web.xml): set version to 'production'.

Add(loadingIndicator.js).
Modify(userForm.js): inject function parameters via list(to prevent errors during uglification phase).
Modify(home.js): add loadingIndicator dependency.
Modify(home.tpl.html): add loading-indicator under 'Your accounts'.