add static method squaredHingeLoss().
moved CW-specific update method to CW.
add a comment.
renamed.
Moved a CW-specific update method to CW class.
moved missed_label.
Add a new AROW classifier.
Conform variable name m to the AROW paper.
Updates for the recent enhancement
Conform to AROW paper.
Removed a unnecessary comment
Fixed a bug in getNewWeight
Fixed label type in update()
Moved missed_label
Add SCW classifier.