[SUGGESTION] Window list grouping

[bwat47]

Cinnamon should have an option to enable window list grouping (When you open multiple windows of one app they get grouped together). This is a basic feature that any taskbar should have. This would be a very useful option to have :) With a 720p monitor the taskbar gets full very fast, this this should be considered a usability issue with cinnamon.

I'm aware there is a 3rd party applet that offers this, but we shouldn't have to rely on a 3rd party applet for this.

[dalcde]

#67
#1026
#1364