Minor wording fixes in internal Android documentation
Added sanity data for HoughLines performance test
Merge pull request #220 from akarsakov:ocl_houghlines_perf_test
Merge pull request #217 from PhilLab:androidDocFix
added cloning reference
added test reference for decolor
added npr reference
fix reference with non compresed png
update reference after bugfix
Merge branch 'photo-test-improvements' of github.com:abak/opencv_extra into photo-test-improvements