fix incorrect calling of tickets_path
config - add force_ssl to config, add configuration notes to README.md
set no-cache headers in the response
add header to prevent iframes
remove freeze on APP_CONFIG for now
Merge pull request #58 from elijh/bugfix/security

fix misc security related bugs
Merge pull request #60 from azul/bugfix/srp-fix-for-zeroprefixed-hashes

Bugfix/srp fix for zeroprefixed hashes
Start to branch using braintree to process credit card payments.
More pieces to set up the billing engine.
Basic functionality for one time transactions using Braintree's transparent redirect API based from https://github.com/braintree/braintree_ruby_examples/tree/master/rails3_tr_checkout (very little changes were required)
Replace .erb with .haml files.
Start to adding customers to braintree vault.
Unauthenticated users can make single payments (like donations), but payments from authenticated users will be as a Braintree Customer stored in the braintree vault.
One Braintree customer per user, and some permissions checks (will need to change for admins.)
Fix to default_credit_card method
Hacky, but avoids SSL certificate error in development mode.
Needs much work, but basic start to recurring payments.
Adding some links, which will be removed.
More working subscriptions.
Let users select amount for payments.