added sample data file to test logistic regression program
added program to demonstrate use of logistic regression classifier
added reference to logistic regression document
added documentation for logistic regression classifier
added test for logistic regression
added logistic regression prototype
added logistic regression classifier
updated logistic regression sample program
fixed trailing white-space in sample program for logistic regression
fixed trailing white-space in logistic regression class
updated logistic regression sample program
rewrote the code to update API, removed inheritance from CvStatModel.
added updated logistic regression prototype with newer C++ API
updated test for logistic regression after changes to LogisticRegression class
updated documentation to reflect newer changes to LogisticRegression class
fixed typedef for LogisticRegression. Updated LogisticRegression prototype with newer C++ API
removed unnecessary semicolon in LogisticRegression class documentation
removed trailing whitespaces from updated logistic regression definition
removed trailing whitespaces from predict function
fixed trailing whitespaces in LogisticRegression code.