Patron Registration Customization Overhaul

[Thomas Berezansky]

The attached patch adds a collection of settings for patron registration, as well as a new display mode.

The new display mode is "Suggested" compared to "Required" or "All". It shows everything "Required" does, but also shows fields flagged as "Suggested", stat cats, and surveys.

To control this and other things are the settings. They come in a few general categories, named ui.patron.edit.<fmclass>.<fmfield>.? where ? is one of the following:

require - Flag the field as required when it otherwise wouldn't be.
show - Show the field like required fields, but don't actually require it.
suggest - Show the field with required/shown fields in "show suggested fields" mode
example - An example string for a field
regex - A regular expression for validating a field

Not all fields have all of the above options by default, although the initial list is the main limiter compared to the code side.

Also included are the following settings:
ui.patron.edit.au.dob.calendar - If true, shows the calendar widget for the date of birth field
ui.patron.edit.phone.example - Example for all phone fields without their own
ui.patron.edit.phone.regex - Regex validator for all phone fields without their own
ui.patron.edit.default_suggested - Default to showing suggested fields instead of all fields

Note: Edited to reflect setting name changes from second patch.

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Signed-off-by: Thomas Berezansky <email address hidden>

[Thomas Berezansky (tsbere)]

Updated patch:

Uses format.date instead of a new date format setting
Uses ui.patron.edit instead of just ui.patron as prefix for new settings
Teaches AutoFieldWidget how to use format.date in general for timestamps

[Mike Rylander (mrylander)]

Committed to trunk and rel_2_1