Added validation for new mountains and fixed error with empty fields
Merge branch 'master' of https://github.com/tiradoe/fourteener-challenge

Conflicts:
	app/assets/stylesheets/mountains.css.scss
	app/controllers/mountains_controller.rb
	app/views/mountains/list.html.erb
Merge branch 'master' of https://github.com/tiradoe/fourteener-challenge

Conflicts:
	app/assets/stylesheets/mountains.css.scss