change the nominate functionality.
Merge branch 'master' of github.com:nitinzd/brails
modified the home controller file.
Added question answer hiding show part.
Merge branch 'master' of github.com:nitinzd/brails
Used slugs instead of IDs
Resolved bug in topic/show
Merge pull request #16 from girishso/master

Fixed: Issue #10
Modified the level show page
Merge branch 'master' of github.com:nitinzd/brails
Have removed association of bonus_cookies. Have resolved bug in topic/show while showing questions.
fix the issue for generating correct and wrong image.
Merge branch 'master' of github.com:nitinzd/brails
modified the topic show file.
change the if statement for displaying right and wrong image.
integrate the cancan authorization.
Attempt question issue
Cosmo change
modified the ability file.
Changes for production setup

+ Pre-compiled assets
+ production database config
+ mailer config