Show maturities in project header
Remove references of old reward attributes
Remove explicit call to Reward#to_s in views
Send happens_at attribute in spec creating reward

It's a required attribute
Order payment engines by name

In our case, the bank account will show before the creditcard. That is what
we wanted.
Update contribution feature spec with the new view
Merge pull request #634 from neighborly/jl-order-payment-engines

Order payment engines by name
Remove minimum value of contributions
Merge pull request #629 from neighborly/im-maturities

Show maturities in project header
Remove the option for user choose if whants to pay the fees from views