Membership version 2.1 beta 1

Hi gang
Attached to this post is the first beta of version 2.1 of the Membership plugin.

There have been quite a few upgrades in this version and some other tweaks and placeholders for additional functionality which will come in later betas.

Key changes are:
- Switched from drop down subscription prices to allowing prices to be directly entered.
- Added plugins section so you can activate membership add-ons / plugins on a blog/site by blog/site basis
- Improved the global tables system / functionality to allow for a single set of settings to control a network of blogs/sites.

It's recommended that you play with this on a local/development install initially. Any issues, let me know below.

Rgds
Barry