Added counts to timings per action per day

queries/grape/grape_transaction_timings_per_action_per_day.txt

 CREATE CONTINUOUS QUERY grape_transaction_timings_per_action_per_day ON $DATABASE
 BEGIN
-    SELECT mean("duration") AS duration_mean,
+    SELECT count("duration") AS count,
+        mean("duration") AS duration_mean,
         percentile("duration", 95) AS duration_95th,
         percentile("duration", 99) AS duration_99th,
         mean(sql_duration) AS sql_duration_mean,

queries/rails/rails_transaction_timings_per_action_per_day.txt

 CREATE CONTINUOUS QUERY rails_transaction_timings_per_action_per_day ON $DATABASE
 BEGIN
-    SELECT mean("duration") AS duration_mean,
+    SELECT count("duration") AS count,
+        mean("duration") AS duration_mean,
         percentile("duration", 95) AS duration_95th,
         percentile("duration", 99) AS duration_99th,
         mean(sql_duration) AS sql_duration_mean,

queries/sidekiq/sidekiq_transaction_timings_per_action_per_day.txt

 CREATE CONTINUOUS QUERY sidekiq_transaction_timings_per_action_per_day ON $DATABASE
 BEGIN
-    SELECT mean("duration") AS duration_mean,
+    SELECT count("duration") AS count,
+        mean("duration") AS duration_mean,
         percentile("duration", 95) AS duration_95th,
         percentile("duration", 99) AS duration_99th,
         mean(sql_duration) AS sql_duration_mean,