Search, Paging, and "As of" Date (#10)

Issues Fixed:
* Added request search capability (#2)
* Added pagination to search / inactive request lists (#3)
* Added "as of" date display option for requests (#9)
* Updated documentation to reflect the new options and their behavior

Also Fixed (w/o issue numbers):
* Fixed a verbiage error with the confirmation prompts
* Split the I18N for the maintain requests page into its own localized view
* Modified many "magic strings" in the code to use F# discriminated unions instead (stored as single-character codes in the database)

src/PrayerTracker.UI/Church.fs

@@ -75,7 +75,7 @@ let maintain (churches : Church list) (stats : Map<string, ChurchStats>) ctx vi
           |> List.map (fun ch ->
               let chId      = flatGuid ch.churchId
               let delAction = sprintf "/church/%s/delete" chId
-              let delPrompt = s.["Are you want to delete this {0}?  This action cannot be undone.",
+              let delPrompt = s.["Are you sure you want to delete this {0}?  This action cannot be undone.",
                                   sprintf "%s (%s)" (s.["Church"].Value.ToLower ()) ch.name]
               tr [] [
                 td [] [