Blocks: Do not display that tables have been created if there are no tables created.

I'm not sure if this is blocks, installation, or administration so I'm tagging all three for now. This is admittedly a trivial matter but I think potentially misleading that when installing a new block it always displays that the block's tables have been created even if there are no tables to be created. I would prefer that it say that the block was successfully installed. I realize that for most users this may not make a difference. I think it would be nice if tables are created to indicate the number of tables that were successfully created by saying that a particular block was successfully installed and created x tables.