Allows users to choose to use their Gravatar.
Download or clone the Gravatar plugin repo into your esoTalk plugin directory:
cd ESOTALK_DIR/addons/plugins/
git clone git@github.com:esotalk/Gravatar.git Gravatar
Navigate to the the admin/plugins page and activate the Gravatar plugin.
Create definitions.Gravatar.php in your language pack with the following definitions:
$definitions["Change your avatar on %s."] = "Change your avatar on %s.";
$definitions["Default imageset"] = "Default imageset";
$definitions["Default"] = "Default";