Introduce defaultImage when the account does not have emails

When the Gerrit account did not have any emails, the avatar
was null which was creating strange situations where the icon
was taken from other accounts on the GUI.

Return always the Gravatar default image, so that it would be
clear that the user does not have a visual identity and would
not be assigned to other people's faces.

Change-Id: Ia5bde853ebbb4a48bc30db30a6f9f47dfe68d935
3 files changed
tree: ddabd55e73856ce2c05a2ee34e8279c442e371dd
  1. .settings/
  2. src/
  3. .gitignore
  4. BUILD