add customer level

server/Customer.py

@@ -0,0 +1,10 @@
+class Customer(object):
+    def __init__(self, zone, adminPwd, contact, email, maxEntries):
+        self.zone = zone
+        self.adminPwd = adminPwd
+        self.contact = contact
+        self.email = email
+        self.maxEntries = maxEntries
+
+    def __str__(self):
+        return "Customer[zone=%s, adminPwd=%s, contact=%s, email=%s, maxEntries=%d]" %  (self.zone, self.adminPwd, self.contact, self.email, self.maxEntries)