first version of moving KDTree from core to ml
first implementation KNearest wrapper on KDTree
initial commit
slight changes, theme become more similar with current
removed kdtree declaration from interface
Added Ptr<T> support to Java wrappers
different enhancements
changed optimal vector width for Intel
Changed cmake python library search startegy for crosscompiling
fixed all known issues
moving algorithm type to param
tt & header background colors changed
Fixing documentation links
disabling java bindings for xfeatures2d module due to build errors
Fixed java tests build

- disabled xfeature2d dependency for java wrappers
- fixed java wrappers build after cmake rerun
- disabled opencv_ml tests temporarily
- fixed Imgproc usage in java tests
Fixed android java test build
Fixed android samples build
typo: rect -> roi
[samples/pyhton] fix common {LINE->CV}_AA
Merge pull request #3199 from apavlenko:fix_docs_typo