uc_recurring 6.x-2.0-alpha1

First release of 2.x branch, improvements over 1.0 include:
* New/improved API for payment gateways to interface with uc_recurring - see hook_recurring_info()
* Ability to treat a recurring fee as a new order - so it gets access to everything a new order gets at the time of renewal e.g separate invoices, apply roles etc...
* Option for unlimited renewals (ie: renew until canceled)
* Option for recurring fee to be set that same as product price (ie: include things like attribute price adjustments into the fee)
* Conditional action support
* Extension API, admins can configure what will happen on a failed payments, e.g order can be extended and re-attempts as many times as required.

Payment methods/gateway supported:
* NONE - you can run uc_recurring without any payment methods/gateways enabled and it will track all payments owing
* test_gateway - so you can test out an example credit card interface
* Authorize.net CIM - fully supported

Payment Gateway partial support (work has started on):
* Paypal WPP and Paypal WPS
* Authorize.net ARB