[MOD] rework of the icon sets as jonny suggested (make settings into a separate array, remove font-awesome.php as the default will be font-awesome) 
Also start fixing the admin anchor icons for the various sections. TODO: deal with the larger admin section icons at tiki-admin.php

git-svn-id: file:///var/local/code.tiki.org/tikisvn/trunk@52952 b456876b-0849-0410-b77d-98878d47e9d5