Doc: update SQL examples

- screenshot: remove OS-dependent part of window
- \image --> \borderedimage

Change-Id: I3eb98595e5c2eb254d3857e4c81dfedac8b7939e
Reviewed-by: Topi Reiniö <topi.reinio@qt.io>

examples/sql/doc/src/books.qdoc

@@ -34,7 +34,7 @@
     The Books example shows how Qt's SQL classes can be used with the model/view
     framework to create rich user interfaces for information stored in a database.
 
-    \image books-demo.png
+    \borderedimage books-demo.png
 
     Information about a collection of books is held in a database. The books are
     catalogued by author, title, genre, and year of publication. Although each of

examples/sql/doc/src/cachedtable.qdoc

@@ -34,7 +34,7 @@
     caching any changes to the data until the user explicitly submits them using a
     push button.
 
-    \image cachedtable-example.png
+    \borderedimage cachedtable-example.png
 
     The example consists of a single class, \c TableEditor, which is a
     custom dialog widget that allows the user to modify data stored in

examples/sql/doc/src/drilldown.qdoc

@@ -34,7 +34,7 @@
     well as submit changes, using the QSqlRelationalTableModel and
     QDataWidgetMapper classes.
 
-    \image drilldown-example.png Screenshot of the Drill Down Example
+    \borderedimage drilldown-example.png Screenshot of the Drill Down Example
 
     When running the example application, a user can retrieve
     information about each item by clicking the corresponding image.

examples/sql/doc/src/masterdetail.qdoc

@@ -40,5 +40,5 @@
     the database and the associated XML file using the API provided by
     the Qt SQL and Qt XML modules, respectively.
 
-    \image masterdetail-example.png
+    \borderedimage masterdetail-example.png
 */

examples/sql/doc/src/querymodel.qdoc

@@ -34,5 +34,5 @@
     data obtained from a SQL query, using a model that encapsulates
     the query and table views to display the results.
 
-    \image querymodel-example.png
+    \borderedimage querymodel-example.png
 */

examples/sql/doc/src/relationaltablemodel.qdoc

@@ -33,5 +33,5 @@
     \brief The Relational Table Model example shows how to use table views with a relational
     model to visualize the relations between items in a database.
 
-    \image relationaltablemodel-example.png
+    \borderedimage relationaltablemodel-example.png
 */

examples/sql/doc/src/sqlbrowser.qdoc

@@ -33,5 +33,5 @@
     \brief The SQL Browser example shows how a data browser can be used to visualize
     the results of SQL statements on a live database.
 
-    \image sqlbrowser-demo.png
+    \borderedimage sqlbrowser-demo.png
 */

examples/sql/doc/src/sqlwidgetmapper.qdoc

@@ -33,7 +33,7 @@
     \brief The SQL Widget Mapper example shows how to use a map information from a
     database to widgets on a form.
 
-    \image sql-widget-mapper.png
+    \borderedimage sql-widget-mapper.png
 
     In the \l{Combo Widget Mapper Example}, we showed how to use a named
     mapping between a widget mapper and a QComboBox widget with a special
@@ -74,7 +74,7 @@
     including values for the address types that correspond to the address
     types are stored in a separate table.
 
-    \image widgetmapper-sql-mapping-table.png
+    \borderedimage widgetmapper-sql-mapping-table.png
 
     We create an "addresstype" table containing the identifiers used in the
     "person" table and the corresponding strings:
@@ -93,7 +93,7 @@
     used wherever the "typeid" is presented to the user. (See the
     QSqlRelationalTableModel::setRelation() documentation for details.)
 
-    \image widgetmapper-sql-mapping.png
+    \borderedimage widgetmapper-sql-mapping.png
 
     The constructor of the \c Window class can be explained in three parts.
     In the first part, we set up the model used to hold the data, then we set

examples/sql/doc/src/tablemodel.qdoc

@@ -33,5 +33,5 @@
     \brief The Table Model example shows how to use a specialized SQL table model with table
     views to edit information in a database.
 
-    \image tablemodel-example.png
+    \borderedimage tablemodel-example.png
 */