condition for Mat step
Merge pull request #2276 from asmorkalov:android_install_cuda
Merge pull request #2269 from Nerei:qt5_vtk_guards
Revert "disable gpu Subtract_Array test:"

This reverts commit e91bf95d5832e87aa70240c50f0bf7fcc587e8c8.
Revert "disable gpu CvtColor.*2HSV tests:"

This reverts commit 952027a8536215a5e4308c79a59308c6b3426354.
fix epsilons for several gpu tests
Revert "disable CUDA generalized Hough Transform"

This reverts commit 33d42b740c6fe938b63a0b25c9ad51741aba48c3.
added cv::sqrBoxFilter to T-API
fixing issues from coverity scan 1167937, 1167938, 1167939, 1127248 (http://scan.coverity.com/projects/169?tab=Overview)
Merge pull request #2289 from ilya-lavrenov:umat_expr
Merge pull request #2287 from ilya-lavrenov:mat_step
Update py_image_display.rst

OS information removed.
Merge pull request #2251 from ilya-lavrenov:tapi_sqrboxfilter
dynamicuda module disabled in OpenCv.mk for all arches except armeabi-v7a.
fix nonfree module compilation without CUDA
Merge pull request #2300 from asmorkalov:android_no_cuda_not_armeabiv7a
Implicit testdata directory permissions setup added.
ocl: workaround for failures with misaligned host buffers
ocl: update gftt
Revert "disable gpu Canny and HoughCircles perf tests:"

This reverts commit dbce90692acd84fbf46bde4da4b1726049f42857.