New type: weight_type. Comments.
Using weight_type when needed. Replaced all tabs for spaces.
Removed dumb things from the file.
Remove excess whitespace.
Test for parameters existence first.
One less whitespace.
StrongClassifier now destroys the instances of WeakClassifiers it owns.
Adding comments. Changing the order of some arguments to a more logical position.
Some code documentation. Added a TODO. Minor code formating. Changed some methods in Adaboost from private to protected.