Merge pull request #17 from alexcodreanu86/carousel

Carousel
updated the priceChecker is ment to work on home page
added number of passengers to trips controller
adjusted the priceChecker initialization
updated the form for creating new trip
updated the trips migration with customer name number of passengers and pickup date and time
updated the schema on dbc sql
updated the specs for the rate calculator
Merge branch 'master' of http://github.com/alexcodreanu86/nitar into carousel