added some new performance tests
Master Version: Added NEON Optimizations for LK Optical Flow.
Merge pull request #2440 from codyrigney92:Master_LKOptFlow_NEON
test for clEnqueueReadBufferRect
disable SURF
Merge pull request #2452 from ilya-lavrenov:tapi_disable_surf
Merge pull request #2450 from ilya-lavrenov:tapi_test
Merge pull request #2431 from ilya-lavrenov:tapi_perf
NDK supports -fopenmp
http://recursify.com/blog/2013/08/09/openmp-on-android
Merge branch 'master' into 3.x