Retrieval of images and 2 new paramters added

Hello,

I have added some features to your addon and I would like for them to be in future versions of your addon.

First of all, I added the retrieval of image url's embedded in the tweet. In your template code you can loop through them with {images}{image}{/images}. This will return all images that were in the original tweet. 
With that came the wish to retrieve only tweets that contained images from a certain user. I did not want to use search, because search only has a limited database of +- 9 days of tweets. I have added a parameter images_only which will default to false. If set to true, it will skip all tweets that don't contain an image. 

And last of all I added support for the count parameter. I wanted to retrieve more than 15 tweets, so I added count as an optional parameter. This is natively supported by the twitter API.