[FIX] articles: If the body is empty use the heading for the size (otherwise they all show as zero bytes)

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@48045 b456876b-0849-0410-b77d-98878d47e9d5
[FIX] articles: Use self_links for the remove and approve action icons so page size, offset, find etc auto_query_args get appended to the URL automatically

git-svn-id: file:///var/local/code.tiki.org/tikisvn/branches/12.x@48046 b456876b-0849-0410-b77d-98878d47e9d5