Load user's avatar from AccountsService if it exists
Review Request #128951 - Created Sept. 19, 2016 and submitted
Plasma's UserManager (and Gnome) both now use AccountsService to store user information. AccountsService saves the account information, and more particularly the avatar, in /var. This is very useful for login managers that need to load them without having to deal with mounting remote or encrypted home directories. This patch makes KUser return the avatar saved by AccountsService first if it exist.