Updates warner

Keep the control of your notifications and
always stay aware of the next:

- version of your favorite softwares or games

- video of your favorite channels (no account or subscription needed)

- informatic security alert

- step of your favorite crowdfunding projects

- version of the security library you are using

- tweets, news of people you are following

- well... modification of almost any public web resources

[GUI example1] [GUI example2]