Update tocDefinitions.rst

Second fix in docs needed for https://github.com/Itseez/opencv_contrib/pull/70
http://www.build.opencv.org/buildbot/builders/precommit-contrib_docs/builds/277
fix for ocl_morphSmall
fixed ocl_boxFilter
New optimization for canny

new hysteresis

delete whitespaces

fix problem with mad24

Dynamic work group size

dynamic work group size

Fix problem with warnings

Fix some problems with border

Another one fix

Delete trailing whitespaces

some changes

fix problem with warning
Merge pull request #3144 from ElenaGvozdeva:ocl_morphSmall
Merge pull request #3139 from bmagyar:patch-2
ORB crashed with no keypoints present
ORB.cl : fixed redefinition of val
changed base types for cv::memopTypeToStr
optimization of cv::accumulate**
improved cv::ocl::predictOptimalVectorWidth
used new stratehy in cv::accumulate**
Merge pull request #3153 from PhilLab:patch-3
CUDA optical flow stubs: missing parameter
Optimize OpenCL version of Laplacian filter for kernel size great than 3
Added double support for OCL version of DFT
PnP solver: fixed element-wise access
Merge pull request #3151 from PhilLab:orbNoKeypoints
Merge pull request #3154 from PhilLab:patch-4
Merge pull request #3157 from PhilLab:pnpFix