Removed auth requirement from create leads, removed old "comingsoon" files and routes

Removed authorization requirement when creating a new lead. These changes exist in 2 files:
app/controllers/leads.server.controller.js
app/routes/leads.server.route.js

Removed the old "comingsoon.server.view.html" page and all of its routes/dependencies.

Updated styles and markup for the rooms input on the home view, city view (search results page), and hotel detail view