OpenCV 3.4.0-rc

OpenCV 3.3.1

Additionally adds a tutorial on how to use the tag file in other
projects to link back to the OpenCV documentation.

The tutorial is also the only place which links to the tag file as of
now.

For more information on tag files and external documentation, check
https://www.stack.nl/~dimitri/doxygen/manual/external.html

Oops. Hopefully it works this time.

update

add anchor

* Adding CMake script to check if pylint is installed
* Adding Pylint config file (to choose the tests that are enabled)
* Adding CMake script to samples/python/tutorial_code

Testing: bad-indentation, mixed-indentation, unnecessary-semicolon, unused-variable

* change tutorial to use enum name instead of value

* use enum name instead of value

Update windows_install.markdown (#8752)

* Update broken downloads link

* Update broken downloads link

* Update broken downloads link

* Update linux_install.markdown

Grammar improvements, fixed typos.

* Update tutorials.markdown

Improvements in grammar.

* Update table_of_content_calib3d.markdown

* Update camera_calibration_square_chess.markdown

Improvements in grammar. Added answer.

* Update tutorials.markdown

* Update erosion_dilatation.markdown

* Update table_of_content_imgproc.markdown

* Update warp_affine.markdown

* Update camera_calibration_square_chess.markdown

Removed extra space.

* Update gpu_basics_similarity.markdown

Grammatical improvements, fixed typos.

* Update trackbar.markdown

Improvement for better understanding.

- disabled OPTIMIZE_OUTPUT_JAVA
- filtered out *.m scripts
- removed link to old Sphinx documentation
- replaced all mentions of Sphinx with Doxygen

Fix Documentation Typos (#7942)

* GSoC 2016 - Adding toggle files to be used by tutorials.

Add a toggle option for tutorials.
* adds a button on the HTML tutorial pages to switch between blocks
* the default option is for languages: one can write a block
for C++ and another one for Python without re-writing the tutorial

Add aliases to the doxyfile.
* adding alises to make a link to previous and next tutorial.
* adding alias to specify the toggle options in the tutorials index.
* adding alias to add a youtube video directly from link.

Add a sample tutorial (mat_mask_opertaions) using the developed aliases:
* youtube alias
* previous and next tutorial alias
* buttons
* languages info for tutorial table of content
* code referances with snippets (and associated sample code files)

* Removing the automatic ordering.
Adding specific toggles for cpp, java and python.
Move all the code to the footer / header and Doxyfile.
Updating documentation.

This is based on testing OpenCV 3.1 with VisionWorks, which identified issues.
The tutorial now specifies 3 cherry-pick commands for opencv.

Update linux_install.markdown

Update linux_install.markdown

Update linux_install.markdown

Update linux_install.markdown

Update linux_install.markdown

Update linux_install.markdown

* Contribute a tutorial on building for NVIDIA Tegra

* Clean-up and fixes based on feedback.

resolves #6944