Doc: make instructions for adding kits easier to find

As the Qt version and compiler are now specified in a kit, and not
in build settings any more, the instructions for adding kits, Qt
versions, and compilers should be moved up one level, directly under
"Configuring Projects". I also added some instructions and links to them
in the text. These topics could also go into "Building and Running", but
I feel they now fit quite well here.

Change-Id: Icdf436a97e824e44a5997f39a105996c5bef05dc
Reviewed-by: Tobias Hunger <tobias.hunger@digia.com>

doc/src/projects/creator-projects-compilers.qdoc

@@ -26,7 +26,7 @@
     \contentspage index.html
     \previouspage creator-project-qmake.html
     \page creator-tool-chains.html
-    \nextpage creator-run-settings.html
+    \nextpage creator-build-settings.html
 
     \title Adding Compilers
 

doc/src/projects/creator-projects-settings-build.qdoc

@@ -24,9 +24,9 @@
 
 /*!
     \contentspage index.html
-    \previouspage creator-configuring-projects.html
+    \previouspage creator-tool-chains.html
     \page creator-build-settings.html
-    \nextpage creator-targets.html
+    \nextpage creator-run-settings.html
 
     \title Specifying Build Settings
 
@@ -192,14 +192,4 @@
     compilers and tools need. Therefore, the environment is never totally empty,
     even after you clear it.
 
-    \section1 Related Topics
-
-    \list
-
-        \li \l{Adding Kits}
-        \li \l{Adding Qt Versions}
-        \li \l{Adding Compilers}
-
-    \endlist
-
 */

doc/src/projects/creator-projects-settings-overview.qdoc

@@ -26,7 +26,7 @@
     \contentspage index.html
     \previouspage creator-version-control.html
     \page creator-configuring-projects.html
-    \nextpage creator-build-settings.html
+    \nextpage creator-targets.html
 
     \title Configuring Projects
 
@@ -41,11 +41,34 @@
     open projects and use the \gui Build menu commands to build, deploy, and
     run projects.
 
+    \section1 Selecting Kits
+
+    \image qtcreator-project-targets.png
+
+    To add kits for the project, select \gui {Add Kit}. The list displays kits
+    that are configured in \gui Tools > \gui Options > \gui {Build & Run} >
+    \gui Kits. To add kits to the list, select \gui {Manage Kits}.
+    For more information about adding kits, see \l{Adding Kits}.
+
+    Each kit consists of a set of values that define one environment, such as a
+    device, compiler, and Qt version. For more information, see
+    \l{Adding Qt Versions} and \l{Adding Compilers}.
+
+    To copy the build and run settings for a kit to another kit, select
+    \gui {Copy to Kit} in the kit menu.
+
+    To change the kit, while preserving the build and run settings, select
+    \gui {Change Kit}.
+
+    To remove a kit, select \gui {Remove Kit}.
+
+    \section1 Specifying Settings
+
     The project pane consists of the following tabs:
 
     \list
 
-        \li \l{Adding Kits}{Build & Run}
+        \li Build & Run
 
             \list
 
@@ -73,20 +96,4 @@
     If you have multiple projects open in \QC, use the tabs at the top of the
     window to navigate between their settings.
 
-    \section1 Selecting Kits
-
-    \image qtcreator-project-targets.png
-
-    To add kits for the project, select \gui {Add Kit}. The list displays kits
-    that are configured in \gui Tools > \gui Options > \gui {Build & Run} >
-    \gui Kits. To add kits to the list, select \gui {Manage Kits}.
-
-    To copy the build and run settings for a kit to another kit, select
-    \gui {Copy to Kit} in the kit menu.
-
-    To change the kit, while preserving the build and run settings, select
-    \gui {Change Kit}.
-
-    To remove a kit, select \gui {Remove Kit}
-
 */

doc/src/projects/creator-projects-settings-run.qdoc

@@ -24,7 +24,7 @@
 
 /*!
     \contentspage index.html
-    \previouspage creator-tool-chains.html
+    \previouspage creator-build-settings.html
     \page creator-run-settings.html
     \nextpage creator-editor-settings.html
 

doc/src/projects/creator-projects-targets.qdoc

@@ -24,7 +24,7 @@
 
 /*!
     \contentspage index.html
-    \previouspage creator-build-settings.html
+    \previouspage creator-configuring-projects.html
     \page creator-targets.html
     \nextpage creator-project-qmake.html
 

doc/src/qtcreator.qdoc

@@ -165,12 +165,10 @@
             \li \l{Using Version Control Systems}
             \li \l{Configuring Projects}
             \list
+                \li \l{Adding Kits}
+                \li \l{Adding Qt Versions}
+                \li \l{Adding Compilers}
                 \li \l{Specifying Build Settings}
-                \list
-                    \li \l{Adding Kits}
-                    \li \l{Adding Qt Versions}
-                    \li \l{Adding Compilers}
-                \endlist
                 \li \l{Specifying Run Settings}
                 \li \l{Specifying Editor Settings}
                 \li \l{Specifying Code Style Settings}