Moved KNN Classifier regression test from trunk
Removed unnecessary test code
Updated license
Removed unused imports
Formatting
Converted to unittest format
Changed print to use logger
Changed print to use logger
Added KNN classifier categories test
Updated license and remove unused imports
Switched to unittest format
Switched from print to logger
Conventions
Conventions
More conventions
Re-enabled tests
Conventions
Better naming
Moved KNN classifier tests to integration tests folder
More conventions