New # Rooms input on home page, removed hardcoded cityId from hotel server controller

Changed the # Rooms input from a simple text input to a dropdown button for total # rooms.
Inside the dropdown menu, there's an input for each date selected in the date range. The user enters in # rooms for each night.
The text inside the button displays a total sum of all the rooms selected.
Both the total # rooms and the # rooms for each individual night get passed into the URL params.
Stylized this to look clean. 

Removed the hardcoded cityId from the hotel server controller so that all hotels show now. Sorry Mike.

TO DO:
Further styling enhancements on rooms dropdown button to handle cases when total # rooms = 0 and when no dates have been selected yet.
Figure out how to filter the list of hotels per city on each city view.
Replace all room inputs prevalent on all views with the newly created one.