Doc: update docs for Modify Extract Installer example

Fix issues in the example files and unify some values to
make it possible to use standard text for the configuring
section.

Change-Id: I4e4236d519d075fc1f0461e3b863989ca0373cd3
Reviewed-by: Niels Weber <niels.weber@theqtcompany.com>
Reviewed-by: Kai Koehne <kai.koehne@theqtcompany.com>

examples/doc/modifyextract.qdoc

@@ -32,9 +32,38 @@
 
     \brief Using the extract archive hook to modify the target path.
 
+    \image qtifw-examples-modifyextract.png
+
+    \e{Modify Extract Installer} illustrates how to overwrite the
+    \c{component.createOperationsForArchive()} function to be able to install a
+    component to a modified path.
+
     \include installerfw-examples-configuring.qdocinc
 
     \quotefile modifyextract/config/config.xml
 
+    \include installerfw-examples-packaging.qdocinc
+
+    \list
+        \li The \c <Default> section is set to \c true to preselect the
+            component in the installer.
+        \li The \c <Script> section specifies the file name of the JavaScript
+            file that is loaded to perform operations.
+    \endlist
+
+    \quotefile modifyextract/packages/org.qtproject.ifw.example.modifyextract/meta/package.xml
+
+    \section1 Modifying Target Path
+
+    In installscript.js, we overwrite the default
+    \c{component.createOperationsForArchive()} implementation to be able to
+    register an \c Extract operation with a custom argument:
+
+    \quotefromfile modifyextract/packages/org.qtproject.ifw.example.modifyextract/meta/installscript.js
+    \skipto createOperationsForArchive
+    \printuntil {
+    \skipto component.addOperation
+    \printuntil }
+
     \include installerfw-examples-generating.qdocinc
 */

examples/modifyextract/config/config.xml

@@ -1,9 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Installer>
-    <Name>Modify extract Installer Example</Name>
+    <Name>Modify Extract Installer Example</Name>
     <Version>1.0.0</Version>
-    <Title>Modify extract Installer Example</Title>
+    <Title>Modify Extract Installer Example</Title>
     <Publisher>Qt-Project</Publisher>
-    <StartMenuDir>Qt Installer Framework Example</StartMenuDir>
-    <TargetDir>@HomeDir@/IFWModifyExtractInstallerExample</TargetDir>
+    <StartMenuDir>Qt IFW Examples</StartMenuDir>
+    <TargetDir>@HomeDir@/IfwExample</TargetDir>
 </Installer>

examples/modifyextract/packages/org.qtproject.ifw.example.modifyextract/meta/package.xml

@@ -1,9 +1,9 @@
 <?xml version="1.0"?>
 <Package>
-    <DisplayName>modify extract operation</DisplayName>
+    <DisplayName>Modify extract operation</DisplayName>
     <Description>A component that uses a hook to modify the extract operation.</Description>
     <Version>1.0.1</Version>
-    <ReleaseDate>2013-02-27</ReleaseDate>
+    <ReleaseDate>2014-12-19</ReleaseDate>
     <Default>true</Default>
     <Script>installscript.js</Script>
 </Package>