Fix several documentation build warnings

Conflicts:
	modules/gpu/doc/video.rst
	modules/ocl/doc/ocl.rst

doc/tutorials/introduction/table_of_content_introduction/table_of_content_introduction.rst

@@ -142,7 +142,7 @@ Here you can read tutorials about how to set up your computer to work with the O
   .. cssclass:: toctableopencv
 
   ================ =================================================
-  |AndroidNDKPack| **Title:** :ref:`Android_Dev_Intro`
+  |AndroidLogo|    **Title:** :ref:`Android_Dev_Intro`
 
                    *Compatibility:* > OpenCV 2.4.2
 
@@ -156,7 +156,7 @@ Here you can read tutorials about how to set up your computer to work with the O
   .. cssclass:: toctableopencv
 
   ================ =================================================
-  |AndroidNDKPack| **Title:** :ref:`O4A_SDK`
+  |AndroidLogo|    **Title:** :ref:`O4A_SDK`
 
                    *Compatibility:* > OpenCV 2.4.2
 
@@ -170,7 +170,7 @@ Here you can read tutorials about how to set up your computer to work with the O
   .. cssclass:: toctableopencv
 
   ================ =================================================
-  |AndroidNDKPack| **Title:** :ref:`dev_with_OCV_on_Android`
+  |AndroidLogo|    **Title:** :ref:`dev_with_OCV_on_Android`
 
                    *Compatibility:* > OpenCV 2.4.2
 
@@ -180,7 +180,7 @@ Here you can read tutorials about how to set up your computer to work with the O
 
   ================ =================================================
 
-     .. |AndroidNDKPack| image:: images/android_logo.png
+     .. |AndroidLogo| image:: images/android_logo.png
                         :height: 90pt
                         :width:  90pt
 
@@ -276,6 +276,7 @@ Here you can read tutorials about how to set up your computer to work with the O
    ../android_binary_package/android_binary_package
    ../android_binary_package/android_binary_package_using_with_NDK
    ../android_binary_package/android_dev_intro
+   ../android_binary_package/O4A_SDK
    ../android_binary_package/dev_with_OCV_on_Android
    ../ios_install/ios_install
    ../display_image/display_image