Create preferences-system-windows-actions.svg

missing file
Update preferences-system-windows-actions.svg

use the system-run icon for the windows-actions
Update preferences-system-windows-actions.svg
Create object-locked.svg

plasma lock icon also needed for toolbar lock.
Create object-unlocked.svg

needed for unlock the toolbars
Merge pull request #15 from DarkknightAK/master

Create preferences-system-windows-actions.svg