version 0.2-9

* added XMeans to interface for clusterers. (C)

version 0.2-6

* upgraded to weka-3.5.3, moved out persistence support as it 
  lacks support from R and others :-( (C)

* Support for Weka control lists in make_class_name_expander(). (K)

version 0.2-5

* added interface to Weka filters, fixed RWekaInterfaces.java
  to abstract class and its methods to class methods. added
  escapes removal to read.arff. (C)

* added evaluate_Weka_classifiers.R (C)

* added low level functions for RWeka Java object persistence. (C)

* added Weka_control class. (K)

version 0.2-4

* upgraded to Weka-3.5.2 (K)

* Exception and missing value fixes in RWekaInterfaces.java, 
  classifiers.R, clusterers.R. Registered DBScan. (C)
