Use LibPlayerSpells-1.0 to select the aura to show on raid units.
Do not show buffs that can also be debuffs on raid units.
Sorts the icons of raid frames to show them in a consistent order.
Removed the "PW:Shield" filter, which is not used anymore.
Add configuration for the buff icons on raid frames.
Merge branch 'master' into lps-raid-icons

* master:
  Added an option to show the group grid when alone.
Use some subgroups for configuration.