Launcher needs an update available notification

[bencoman]

As a prelude to #3, it would be good to notify users of available updates. Even if they must take manual action to install it, it encourages users towards a common/latest version. I'm not sure how that should synchronize with linux-distribution package management.

[jecisc]

@bencoman Hi Ben,

To let you know, @demarey is already working on update system.

[bencoman]

cool. thanks for the info.