set default session value

Author: Nathan Hamblen

meetup_api_client.py

@@ -172,6 +172,7 @@ def __init__(self, oauth_consumer_key, oauth_consumer_secret, access_key=None, a
  self.oauth_consumer_key = oauth_consumer_key
  self.oauth_consumer_secret = oauth_consumer_secret
  self.consumer = oauth.OAuthConsumer(self.oauth_consumer_key, self.oauth_consumer_secret)
+ self.oauth_session = None
  if access_key and access_secret:
  self.oauth_session = self.new_session(access_key=access_key, access_secret=access_secret)