'scales' calculates ranges per alternative now

To support filling of effects table

 - API-incompatible, so renaming service to smaa_v2
 - Make the Patavi service name configurable
 - The 95% CI hulls are calculated client side
 - Modified a test since the previous method didn't really calculate the
   hull of the 95% CIs...
Add app-local .bowerrc

 - apparently the .bowerrc in the root was overriding it