Patch for maybe not wanted email address disclosure

Hi Jesse

I have tried to fix it.
The alt attribute of the image tag is now controlled directly by Wordpress, so it should work now as expected. 
If $alt is set we escape the $alt function parameter and add it to the image.

Cheers
George

( https://github.com/George-Ruethschilling/easy-author-image/tree/master/easy-author-image )