[MOD] icon set changes

git-svn-id: file:///var/local/code.tiki.org/tikisvn/trunk@52876 b456876b-0849-0410-b77d-98878d47e9d5
[FIX] treetable: Reset parent node if not setting it.
Should fix group inheritance listing errors on tiki-objectpermissions.php
Also remove redundant $id statement.

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/13.x@52877 b456876b-0849-0410-b77d-98878d47e9d5
[MRG] Automatic merge, branches/13.x 52870 to 52877

git-svn-id: file:///var/local/code.tiki.org/tikisvn/trunk@52879 b456876b-0849-0410-b77d-98878d47e9d5