Standardize layouting behaviour:
a) not snapshoted icons will not longer get autolayouted when new icon
appear - they will stay at they current place and not "jump"
b) Wanderer Update action now result in repositioning all icons to their
snapshoted coordinates or auto-layouting for icons without snapshoted
coordinates
c) Wanderer Cleanup action now result in re-layouting of all icons
according to sort order
d) behaviour a) and b) does not apply when auto sorting is enabled - there
each change will result in auto-layouting
git-svn-id: https://svn.aros.org/svn/aros/trunk/AROS@43600 fb15a70f-31f2-0310-bbcc-cdcc74a49acc