Added highcharts gems

gem highcharts-rails
gem lazy_high_charts
Schema
New routes

profesores, alumnos
Added Profesores and Alumnos views
Added Profesores and Alumnos controllers
Added graph styles
Added require highcharts
Merge branch 'master' into dashboard_view

Conflicts:
	db/schema.rb
Identation + Schema
Merge pull request #13 from ig10/dashboard_view

Dashboard view
Fixed usuario's callbacks to save passwords
Merge branch 'master' into login_logic

Conflicts:
	app/assets/stylesheets/custom.css.scss
	config/routes.rb