Create a default preprocess for the "field" theme and make a real template that just will not get used unless copied into a theme.

Tutorial for creating a "user list" view in the getting started doc, plus some fixes for bugs the tutorial revealed.

#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.

A basic analyzer to help find problems, though it needs more analyzing. Plus, new theming information that will really help people figure out exactly what templates they can use to affect their output.

#240634: Due to use of field aliases that are not always valid, multiple pseudo fields weren't showing up. Fixed up the field template to better conform to other templates.

#240102: (Largely by neclimdul) -- Initial pass at profile field handlers. Still 3 @todo items remain but they are not hard.