Allow empty name for records

Author: kntsoriano

dnsimple/struct/zone_record.py

@@ -25,8 +25,12 @@ def __init__(self, name, type, content, ttl=None, priority=None, regions=None):
         dict.__init__(self, name=name, type=type, content=content, ttl=ttl, priority=priority, regions=regions)
 
     def to_json(self):
-        return json.dumps(omitempty(self))
+        omitted = omitempty(self)
+
+        if self['name'] is '':
+            omitted['name'] = ''
 
+        return json.dumps(omitted)
 
 @dataclass
 class ZoneRecord(Struct):