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)

docs/en/requests/maintain.md

@@ -8,6 +8,10 @@ From this page, you can add, edit, and delete your current requests. You can als
 
 To add a request, click the icon or text in the center of the page, below the title and above the list of requests for your group.
 
+## Search Requests
+
+If you are looking for a particular requests, enter some text in the search box and click “Search”. PrayerTracker will search the Requestor/Subject and Request Text fields (case-insensitively) of both active and inactive requests. The results will be displayed in the same format as the original Maintain Requests page, so the buttons described below will work the same for those requests as well. They will also be displayed in pages, if there are a lot of results; the number per page is configurable by small group.
+
 ## Edit Request
       
 To edit a request, click the blue pencil icon; it's the first icon under the “Actions” column heading.

docs/en/small-group/preferences.md

@@ -26,7 +26,7 @@ PrayerTracker must put an name and e-mail address in the “from” position of
 
 ## E-mail Format
 
-"This is the default e-mail format for your group. The PrayerTracker default is HTML, which sends the list just as you see it online. However, some e-mail clients may not display this properly, so you can choose to default the email to a plain-text format, which does not have colors, italics, or other formatting. The setting on this page is the group default; you can select a format for each recipient on the “Maintain Group Members” page.
+This is the default e-mail format for your group. The PrayerTracker default is HTML, which sends the list just as you see it online. However, some e-mail clients may not display this properly, so you can choose to default the email to a plain-text format, which does not have colors, italics, or other formatting. The setting on this page is the group default; you can select a format for each recipient on the “Maintain Group Members” page.
 
 ## Colors
 
@@ -60,3 +60,11 @@ This is the time zone that you would like to use for your group. If you do not s
 ## Request List Visibility
 
 The group's request list can be either public, private, or password-protected. Public lists are available without logging in, and private lists are only available online to administrators (though the list can still be sent via e-mail by an administrator). Password-protected lists allow group members to log in and view the current request list online, using the “Group Log On” link and providing this password. As this is a shared password, it is stored in plain text, so you can easily see what it is. If you select “Password Protected” but do not enter a password, the list remains private, which is also the default value. (Changing this password will force all members of the group who logged in with the “Remember Me” box checked to provide the new password.)
+
+## Page Size
+
+As small groups use PrayerTracker, they accumulate many expired requests. When lists of requests that include expired requests, the results will be broken up into pages. The default value is 100 requests per page, but may be set as low as 10 or as high as 255.
+
+## "As of" Date Display
+
+PrayerTracker can display the last date a request was updated, at the end of the request text. By default, it does not. If you select a short date, it will show "(as of 10/11/2015)" (for October 11, 2015); if you select a long date, it will show "(as of Sunday, October 11, 2015)".