Adding vendion to Dev list

Signed-off-by: Adam Jimerson <vendion@gmail.com>
Adding Google+ icon for Devs page

Adding in a Google+ icon for the Devs page those those folk that don't
Twitter.  Feel free to tweak the image as needed, the colors are a bit
off currently but don't have a vector image editor currently.

Signed-off-by: Adam Jimerson <vendion@gmail.com>