add "back to members" link on member detail pages/views

updated tests for copy changes made in views

add new stylesheets, more CSS, altered views and gave them hooks for

Cherry pick from Alex: moved active/inactive counts into respective areas, cleaned up tables a

Refactor active members metrics out of controller

A little bit of refactoring for idiomatic Ruby's sake

Removed extraneous code for metrics on basic members

Recfactor out basic member metrics from the controller

Fixed Rspec comment

Refactored the lite membership metrics code

Optimize MemberMetrics into a MemberMetricsSnapshot

Start encapsulating member metrics information

Really crap implementation of counting the breakdown between membership levels.

Refactor out the member tables

Show basic member statistics