Show Gravatar in Log Dialog

Signed-off-by: Sup Yut Sum <ch3cooli@gmail.com>
Settings Dialogs move layout

Signed-off-by: Sup Yut Sum <ch3cooli@gmail.com>
Add Gravatar settings

Signed-off-by: Sup Yut Sum <ch3cooli@gmail.com>
Add caching for 7 days

Signed-off-by: Sup Yut Sum <ch3cooli@gmail.com>
Support Gravatar

Signed-off-by: Sup Yut Sum <ch3cooli@gmail.com>