Optical flow dualt tvl1 ocl-based implementation and tests
changed epsilon for test passing
changed file name to case-sensitve to support linux
master-like performance tests
Added NEON optimizations for LK optical flow (Intrinsics).
tests
ability to merge logs with intersections only
changed localsize to NULL (reviewers comment)
Merge pull request #2432 from ilya-lavrenov:summary_py
typos
Merge pull request #2439 from ilya-lavrenov:typo
Merge pull request #2407 from codyrigney92:LKOptFlow_NEON
Merge pull request #2429 from ilya-lavrenov:master_compatible_tests
Fix for #3554

v4l2_scan_controls_enumerate_menu is unused and causes ioctl error on
RaspberryPi and possibly other Video4Linux variants. See
http://www.raspberrypi.org/forum/viewtopic.php?f=43&t=65026 for more
detail.
Remove clReleaseDevice call (workaround for pure  virtual call on Windows)
tuned some tests
macro for normal return from thriveless kernel.set
Clarifying comments
Merge pull request #2443 from waveform80:issue-3554
Merge pull request #2445 from ilya-lavrenov:ocl_perf