fixing tweepy exception invalid pagnination method

[slipsnip]

Tweep.error('Invalid Pagnation Mode') caused inside TestUserTweets after patching only tweepy.API.user_timeline when you try to use the new Cursor method:

cursor = tweepy.Cursor(api.user_timeline)

Where api is the authorized api returned from tweepy.API()

[slipsnip]

Here is some supporting documentation of the problem https://yadi.sk/d/MAwRqryS0ocBpA
It is caused when you try to initialize a tweepy.Cursor object due to the unitest.mock.patch

[bbelderbos]

Thanks @slipsnip for catching that!