Added fisheye camera model
Added test for jacobians
Added FisheyeTest
Added documentation
Corrected notes
Added stereoCalibrate for Fisheye camera model
Added tests for stereoCalibrate
Added documentation for Fisheye::stereoCalibrate
minor
Added sample of work of Fisheye::undistortImage and its description to documentation. Removed readPoints and readExtrinsic (useless)
Fixed review comments
Fixed build issues
Refactored class Fisheye to namespace fisheye
Changed documentation for namespace fisheye
Added license to source files
Add the ensureSimpleDistance() method to ensure the user the returned distance is not ^2 (the default for L2 for instance)
export BOW to script wrappers
fix -Wmaybe-uninitialized warning (initialize pointers to NULL)
add Bag of Words to python wrapper
Merge pull request #2779 from pemmanuelviel:kmeansppSquareDist