fix file names

doc/tutorials/core/interoperability_with_OpenCV_1/interoperability_with_OpenCV_1.markdown

@@ -46,7 +46,7 @@ and the subsequent words start with a capital letter (like *copyMakeBorder*).
 
 Now, remember that you need to link to your application all the modules you use, and in case you are
 on Windows using the *DLL* system you will need to add, again, to the path all the binaries. For
-more in-depth information if you're on Windows read @ref tutorial_windows_visual_studio_Opencv and for
+more in-depth information if you're on Windows read @ref tutorial_windows_visual_studio_opencv and for
 Linux an example usage is explained in @ref tutorial_linux_eclipse.
 
 Now for converting the *Mat* object you can use either the *IplImage* or the *CvMat* operators.

doc/tutorials/introduction/table_of_content_introduction.markdown

@@ -36,7 +36,7 @@ Additionally you can find very basic sample source code to introduce you to the
 
     You will learn how to setup OpenCV in your Windows Operating System!
 
--   @subpage tutorial_windows_visual_studio_Opencv
+-   @subpage tutorial_windows_visual_studio_opencv
 
     _Compatibility:_ \> OpenCV 2.0
 

doc/tutorials/introduction/windows_install/windows_install.markdown

@@ -401,6 +401,6 @@ Save it to the registry and you are done. If you ever change the location of you
 or want to try out your application with a different build, all you will need to do is to update the
 OPENCV_DIR variable via the *setx* command inside a command window.
 
-Now you can continue reading the tutorials with the @ref tutorial_windows_visual_studio_Opencv section.
+Now you can continue reading the tutorials with the @ref tutorial_windows_visual_studio_opencv section.
 There you will find out how to use the OpenCV library in your own projects with the help of the
 Microsoft Visual Studio IDE.

doc/tutorials/introduction/windows_visual_studio_image_watch/windows_visual_studio_image_watch.markdown

@@ -13,7 +13,7 @@ This tutorial assumes that you have the following available:
 -#  Visual Studio 2012 Professional (or better) with Update 1 installed. Update 1 can be downloaded
     [here](http://www.microsoft.com/en-us/download/details.aspx?id=35774).
 -#  An OpenCV installation on your Windows machine (Tutorial: @ref tutorial_windows_install).
--#  Ability to create and build OpenCV projects in Visual Studio (Tutorial: @ref tutorial_windows_visual_studio_Opencv).
+-#  Ability to create and build OpenCV projects in Visual Studio (Tutorial: @ref tutorial_windows_visual_studio_opencv).
 
 Installation
 ------------

doc/tutorials/introduction/windows_visual_studio_Opencv/windows_visual_studio_Opencv.markdown → doc/tutorials/introduction/windows_visual_studio_opencv/windows_visual_studio_opencv.markdown

-How to build applications with OpenCV inside the "Microsoft Visual Studio" {#tutorial_windows_visual_studio_Opencv}
+How to build applications with OpenCV inside the "Microsoft Visual Studio" {#tutorial_windows_visual_studio_opencv}
 ==========================================================================
 
 Everything I describe here will apply to the `C\C++` interface of OpenCV. I start out from the
@@ -194,11 +194,11 @@ Test it!
 --------
 
 Now to try this out download our little test [source code
-](https://github.com/opencv/opencv/tree/master/samples/cpp/tutorial_code/introduction/windows_visual_studio_Opencv/introduction_windows_vs.cpp)
+](https://github.com/opencv/opencv/tree/master/samples/cpp/tutorial_code/introduction/windows_visual_studio_opencv/introduction_windows_vs.cpp)
 or get it from the sample code folder of the OpenCV sources. Add this to your project and build it.
 Here's its content:
 
-@include cpp/tutorial_code/introduction/windows_visual_studio_Opencv/introduction_windows_vs.cpp
+@include cpp/tutorial_code/introduction/windows_visual_studio_opencv/introduction_windows_vs.cpp
 
 You can start a Visual Studio build from two places. Either inside from the *IDE* (keyboard
 combination: Control-F5) or by navigating to your build directory and start the application with a