Quiet down exception notifier on production

# Why / What's New?

 * Exception notifier was being too noisey and sending errors for things like 404's
 * Yet again, the changing of names for search parameters from `[:q]` to `[:cropsearch][:q]`. Did a quick fix deploy to solve the problem for now. I will write more integration tests to detect this stuff earlier.
 * Style updates
Use the new Ruby 1.9 hash syntax.