Consolidate slider rules, and remove obsolete Textarea rules (from when textarea was implemented as a DIV node).  Refs #10816.
Consolidate slider rules, and remove obsolete Textarea rules (from when textarea was implemented as a DIV node).  Refs #10816.

git-svn-id: 674a2d6b1e32e53f607eb824547723f32280967e@21474 560b804f-0ae3-0310-86f3-f6aa0a117693

redaktor/deliteful