adds rake task to reset failed verification attempts counter [#500]

lib/tasks/failed_census_calls.rake

@@ -0,0 +1,8 @@
+namespace :failed_census_calls do
+
+  desc "Recalculates all the failed census calls counters for users"
+  task count: :environment do
+    User.all.pluck(:id).each{ |id| User.reset_counters(id, :failed_census_calls) }
+  end
+
+end