bump redcloth version
Remove debts feature

The debts feature has never been used, so I feel that it's really time to remove
it now. It's had its chance for a time in the spotlight now, but apparently it
wasn't very important, and now it is time for it to go away.
Delete redundant initializer

The default locale is set in `config/application.rb`.
Merge pull request #124 from datasektionen/remove-debts

remove debts feature
stub specs for moving purchase-observer behaviour to controller
bump rspec
Remove most of PurchaseObserver

`confirm`, `pay` and `cancel` logic is now moved to controller.
Bye bye PurchaseObserver

* `purchase_created` emails are now sent from PurchasesController#create
* vouchers are now pushed to Mage from PurchaseController#keep
* PurchaseObserver is now gone.
updated schema.rb without debts table
removed no-peeping-toms