Bugfix: Memory leak in deletion of er_stack nodes of ERFilter.
Fix GCC 4.9 compiler warning
Change comment according to fix
Optimize OpenCL version of sepFilter2D
added perftest for moments
Change local size
SSE2 optimization of cv::preCornerDetect
sse2 optimization of cv::convertScaleAbs
ocl: don't use OpenCL CPU device in default setup
Merge pull request #2895 from fradelg:master
Merge pull request #2911 from ilya-lavrenov:sse2_convert_scale_abs
Merge pull request #2830 from mlyashko:moments
Merge pull request #2913 from ilya-lavrenov:sse2_precornerdetect
Merge pull request #2923 from alalek:ocl_default_device_ignore_cpu
Merge pull request #2856 from sanchom:master
fixed cv::warpPerspective
Merge branch 'master' of https://github.com/Itseez/opencv.git
Merge pull request #2928 from ilya-lavrenov:tapi_warp_fix
fixed warnings
ocl: add try-catch for OpenCL device getter