Created new branch feature/cw
revised the header style.
changed the default power_t from 0.25 to 0.1
add probit() used in ConfidenceWeighted
Reflect changes in the I/F of PredictionResult
Added ConfidenceWeighted binary classifier.
Added ConfidenceWeighted multi-class classifier.
Reflected changes in the method name of calcScore.
Reflected changes in the I/F of PredictionResult
Build jar package to reflect the recent enhancement for CW
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.