Merge pull request #503 from taka-no-me:fix_docs
removed modules
Revert "removed modules"

This reverts commit 3398ec7a944368cc32c89d7f461fcc0d90566959.
perf_precomp

I dont know what is this
Merge pull request #505 from abidrahmank:2.4
Merge branch '2.4'
Tutorial for ARM Linux cross compilation added.
Merge remote-tracking branch 'upstream/master'
add openCLExecuteKernelInterop method
Fix documentation problems found by check_docs2 script
Fix warnings from documentation build
Merge pull request #509 from taka-no-me:fix_docs_master
Switched to TEST_CYCLE_MULTIRUN for fast tests
Increased time limits
Added Thin Prism Distortion Model

Only the code.
Thin prism distortion model added doc

Thin prism distortion model added to the
camera_calibration_and_3d_reconstruction.rst
optimized DeviceInfo class and ensureSizeIsEnough
Merge pull request #508 from bitwangyaoyao:2.4_interpKernel
Test system refactoring

cmpEps replaced on cmpEps2 to reduce code dublication;
Constants for cmpEps return values added.
Add auto detection to Intel OCL