Registration Component

Added attributes -> below Registration(header) registration_description, below Tickets(header)ticket_description, supporter_level_description.
Integrated gem money-rails to store the price for each supporter level as amount(new added attribute) so as to calculate the total amount accumulated. 

Currency symbols also implemented using this gem. Links to buy tickets also added with buttons. 

here the snap -> 

![screenshot from 2014-05-23 21 24 34](https://cloud.githubusercontent.com/assets/3149236/3068851/2ad9eff6-e293-11e3-9824-c37eb87e707d.png)