Doc: use variable for product name

Change-Id: I17a720f2bd9732f607d104ae6645e6f8eb64fb61
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@nokia.com>

doc/src/overview/creator-glossary.qdoc

@@ -80,7 +80,7 @@
                 \endraw
                 \target glossary-development-target
             \o  Target means the software platform for which you develop an
-                application. Qt Creator groups platform specific settings (such
+                application. \QC groups platform specific settings (such
                 as build configurations, compatible tool chains, and supported
                 Qt versions) as targets to make cross-platform development
                 easier.

doc/src/overview/creator-help-overview.qdoc

@@ -51,7 +51,7 @@
 
         \o  \l{Tips and Tricks}
 
-            Lists useful Qt Creator features.
+            Lists useful \QC features.
 
         \o  \l{Known Issues}
 

doc/src/symbian/qtquick-components-symbian.qdoc

@@ -37,7 +37,7 @@
     for Symbian and the Symbian Anna target as part of the \QSDK. In addition,
     you must install the Qt Quick Components on the test device.
 
-    This tutorial describes how to use Qt Creator to create a small Qt
+    This tutorial describes how to use \QC to create a small Qt
     application, Battery Status, that uses the System Information
     Mobility API to fetch battery information from the device.
 
@@ -71,7 +71,7 @@
         \o  Select \gui Next in the following dialogs to use the default
             settings.
 
-            \note Qt Creator contains a default program icon and generates an
+            \note \QC contains a default program icon and generates an
             \l{Application UID}, for testing the application on a device. You
             only need to change the icon and UID if you deliver the application
             for public use.
@@ -81,7 +81,7 @@
 
     \endlist
 
-    Qt Creator generates the necessary files that contain boiler plate code. The
+    \QC generates the necessary files that contain boiler plate code. The
     wizard creates an application that uses
     \l{http://doc.qt.nokia.com/qt-components-symbian/qt-components-pages-and-navigation-overview.html}
     {page-based application navigation}.