story#1: added a new pricing model for new releases [Keng/Geetha/Tushar]
story # 1 :added unit tests [K/G/T/V]
story #2: added a new pricing model for classics [*]
story # 2: refactored Movie
story #2: refactored movie contd..
story # 3: calculation of points for new releases [*]
story #3: added renter points for all kinds of movies