Default Metrics

[#1]

I think we should be able to set default metrics for each individual report, rather than just across Commerce reports. 

i.e. be able to set the Internal Search report to default to "searches" and a commerce report to "revenue" and a traffic report to "visits" rather than have them all be "visits".

[#2]

This has been implemented in SiteCatalyst 15. Admin users can now set default metrics at the report level in that version of the product.