#251310: Validate exposed filter identifier such that "value" is not valid (since it cannot be made to work)

Various fixes, including making sure that exposed filter settings pass through to argument links and pager links.

Comment links were not working; Lack of RSS row style was not properly validating; added node and user relationships for comment

Missing body caused table level override on field level text items; i.e, "Node revision" overriding "Body"

Redo some form stuff to make it easier to choose the next form when chaining; and add some new chaining options. This commit will require you to visit admin/build/modules to reset the menu or the UI will stop working.

#249489: Remove extraneous, incorrect #description from "transform spaces to dashes" which is pretty descriptive on its own.