Add a tool to compute our monthly revenue.

tools/monthlyrevenue.py

@@ -0,0 +1,19 @@
+from app import stripe
+
+EXCLUDE_CID = {'cus_2iVlmwz8CpHgOj'}
+
+offset = 0
+total_monthly_revenue = 0
+
+batch = stripe.Customer.all(count=100, offset=offset)
+while batch.data:
+  for cust in batch.data:
+    if cust.id not in EXCLUDE_CID and cust.subscription:
+      sub = cust.subscription
+      total_monthly_revenue += sub.plan.amount * sub.quantity
+  offset += len(batch.data)
+  batch = stripe.Customer.all(count=100, offset=offset)
+
+dollars = total_monthly_revenue / 100
+cents = total_monthly_revenue % 100
+print 'Monthly revenue: $%d.%02d' % (dollars, cents)