Adding finder to filter all variantIDs with warnings
adding finder for variant objects, identified by their ID
Adding variant-warning queries to service and using from endpoint
Adding finder for the variant that received most pushes
Applying the warning filter
Adding filter for those variants that have most receivers
using list
Adding serivce for finding the top 3 variatns
Adding endpoint for the top three busy variants
Adding check for empty list argument and adding REST URLs for new endpoints
Applying sblanc's feedback
Merge branch 'Initial_queries'