Tests for controllers:
 Spree::ReviewsController, Spree::FeedbackReviewsController,
 Spree::Admin::ReviewsController, Spree::Admin::FeedbackReviewsController,
 Spree::Admin::ReviewSettingsController
Corresponding necessary change in Spree::FeedbackReview model
Merge pull request #2 from zerothabhishek/controller-specs

Tests for controllers: To improve test coverage