Doc: fix remaining links to Qt wiki in docs

Change-Id: Ia9193cf1870241104bf099ad2e47e3ead4eb43fd
Reviewed-by: hjk <hjk@theqtcompany.com>

doc/api/coding-style.qdoc

@@ -59,7 +59,7 @@
     the philosophy behind Qt development. For more information about how to set up
     the development environment for working on Qt Creator and how to submit code
     and documentation for inclusion, see
-    \l{http://wiki.qt-project.org/index.php/Main_Page}{Guidelines for Contributions to the Qt Project}.
+    \l{https://wiki.qt.io/Qt_Contribution_Guidelines}{Qt Contribution Guidelines}.
 
     \section1 Binary and Source Compatibility
 
@@ -109,7 +109,7 @@
         \li Do not reimplement functions (not even inlines,
             nor protected or private functions).
         \li Check
-            \l {http://wiki.qt-project.org/index.php/Binary_Compatibility_Workarounds}{Binary Compatibility Workarounds}
+            \l {https://wiki.qt.io/Binary_Compatibility_Workarounds}{Binary Compatibility Workarounds}
             for ways to preserve binary compatibility.
     \endlist
 
@@ -640,7 +640,7 @@
     \target coding-rules-namespacing
     \section2 Namespacing
 
-    Read \l {http://wiki.qt-project.org/index.php/Qt_In_Namespace}{Qt In Namespace}
+    Read \l{https://wiki.qt.io/Qt_In_Namespace}{Qt In Namespace}
     and keep in mind that all of Qt Creator is \e{namespace aware} code.
 
     The namespacing policy within Qt Creator is as follows:

doc/api/getting-and-building.qdoc

@@ -37,8 +37,7 @@
     (You can find the current version in our source repository here:
     \l{http://qt.gitorious.org/qt-creator/qt-creator/blobs/master/qtcreator.pro}.)
 
-    You can get prebuilt Qt packages from the
-    \l{https://download.qt-project.org/official_releases/qt/}{Qt Project download page}.
+    You can get prebuilt Qt packages from \l{https://download.qt.io}{Qt Downloads}.
     If you want to use Qt as provided by your Linux distribution, you need to make sure that all
     Qt development packages and private header packages are also installed.
 
@@ -48,7 +47,7 @@
     released source bundles, or from the Gitorious repository
     \l{http://qt.gitorious.org/qt-creator}. If you intend to contribute to \QC
     itself, you should use the repository from our Gerrit review tool as described
-    in the developer wiki here: \l{http://wiki.qt-project.org/Setting_up_Gerrit}.
+    in: \l{https://wiki.qt.io/Setting_up_Gerrit}{Setting up Gerrit}.
 
     We strongly encourage you to do out-of-source builds of \QC (also called
     shadow-builds).