DEFECTS FIXED: Meta Update from SELECT element and WPSC_Region constructor
When visitor meta is updated from a SELECT element the value of selected OPTION element is now used as the meta value rather than the value of the SELECT. The value of the OPTION element was the prior(and correct) behavior.

When region is being constructed from WPSC_COuntries cache the new regions proerties were not initialized correctly.  That has been corrected.

Removed assignment by reference of map entry value in WPSC_Countries, avoids PHP warning