Prevent null

Signed-off-by: Sup Yut Sum <ch3cooli@gmail.com>
Improve log message margin calculation when drawing right side branch label

Signed-off-by: Sup Yut Sum <ch3cooli@gmail.com>
Turn Gravatar URL setting into combo box and provide some Gravatar URLs

Signed-off-by: Sup Yut Sum <ch3cooli@gmail.com>
Make Gravatar Picture Box work with HTTPS again

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

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