MEETZ - eat with the Cheerzers

data format: see db.json

api:

get /cheerzers -> returns all cheerzers optional param: available (bool) -> returns available/non-available cheerzers

get /api/cheerzers/:current_cheerzer_name -> returns 4 available cheerzers to eat with

post /cheerzers {name: string, available: bool} -> add a new cheerzer

put /cheerzers/:cheerzer_id {name: string, available: bool} -> update cheerzer's availability