Hot fixes

[jigglepuff]

1. "All neighborhoods" option is not returning results.

• Assigned ID# 0 in frontend json
• Added logic in backend to handle ID# 0

2. Disable Min and Max price fields since they are not being used. (Bug #49 )

• Added css style to gray out utilized input fields
• Changed Sq Ft Min, Max and step size to allow for more flexible filtering