7df88f18eb
This is similar to #3820 but does not use qsort but an insertion sort in con_attach. Since each bar block automatically gets its own incremental bar id, bards end up being sorted according to their definition order in the config file. For i3bar, the WM_CLASS is modified to include an instance name which depends on the bar_id. This could be useful for other reason, e.g. users targeting a specific bar instance. Fixes #3491