first commit

routing module for user roles
complete lib added, with new menu

menu to work with data-access-level for displaying only the necessary
links for each user
authentication and authorization with angular

more structured way of log in
fixed login data to match angular model
underscore lib added to use in _.extend in project
testing home for logged in user
Merge branch 'login'
Merge branch 'master' of https://github.com/4acertijos/safe_trails into Rony