FIX - for deprecated preg_replace using /e

git-svn-id: http://svn.montala.net/svn/resourcespace@4967 c08608d7-6e46-0410-86ca-f2a6f1370df5
FIX - use simplified code to avoid preg_replace_callback which didn't work on one system

git-svn-id: http://svn.montala.net/svn/resourcespace@4968 c08608d7-6e46-0410-86ca-f2a6f1370df5
FIX - another replacement for /e modifier. Note that the callback function is not done as an anonymous function because this doesn't work on some versions of PHP

git-svn-id: http://svn.montala.net/svn/resourcespace@4969 c08608d7-6e46-0410-86ca-f2a6f1370df5
FIX missing space after Research:

git-svn-id: http://svn.montala.net/svn/resourcespace@4970 c08608d7-6e46-0410-86ca-f2a6f1370df5