Automated moderation actions should be in order

If a node has a Rules-based (automatic) moderation-state change that is triggered by manual moderation-state change, the automated change appears below the manual change on the Moderate tab for that node. This is inconsistent with the standard ordering of events on the page; chronological dexcending. E.g.

Both events get recorded into the workbench_moderation_node_history table with the same timestamp, REQUEST_TIME; see from line 1482 in workbench_moderation_moderate() in workbench_moderation.module. This is good practice and should not change.

The attached patch fixes the bug by adding an additional sort order to the query that gets the node's workbench_moderation_node_history table data to ORDER BY hid DESC.