CHANGES IN VERSION 1.23.1
-----------------------
    o update citation.
    
CHANGES IN VERSION 1.12.1
-----------------------
    o update author's email.
    o update classifier object.
    
CHANGES IN VERSION 1.7.2
-----------------------
    o update documentation

CHANGES IN VERSION 1.7.1
-----------------------

BUG FIXES

    o Update the author list.


CHANGES IN VERSION 1.5.4
-----------------------

NEW FEATURES

    o export $ and $<- methods for class PASclassifier, modelInfo and 
      featureVector.

BUG FIXES

    o No changes classified as "bug fixes" (package under active
    development)


CHANGES IN VERSION 1.5.3
-----------------------

NEW FEATURES

    o No changes classified as "new features" (package under active
    development)

BUG FIXES

    o Fix the bugs in test files for different output of 64bit vs 32bit version.

CHANGES IN VERSION 1.5.2
-----------------------

NEW FEATURES

    o No changes classified as "new features" (package under active
    development)

BUG FIXES

    o Fix the bugs in documentation of predictTestSet.


CHANGES IN VERSION 1.5.1
-----------------------

NEW FEATURES

    o Add buildClassifier function to save the classifier.
    o Add test file
    o predictTestSet also give a invisible output.
    o Add class "modelInfo", "PASclassifier" and "featureVector"

BUG FIXES

    o No changes classified as 'bug fixes' (package under active
    development)


CHANGES IN VERSION 1.1.3
-----------------------

NEW FEATURES

    o No changes classified as "new features" (package under active
    development)

BUG FIXES

    o Fix the bugs 'match' requires vector arguments when using %in%


CHANGES IN VERSION 1.1.2
-----------------------

NEW FEATURES

    o Add citation

BUG FIXES

    o No changes classified as 'bug fixes' (package under active
    development)

CHANGES IN VERSION 1.1.1
-----------------------

NEW FEATURES

    o Re-name the inst/doc directory to vignettes

BUG FIXES

    o No changes classified as 'bug fixes' (package under active
    development)

CHANGES IN VERSION 1.1.0
-----------------------

NEW FEATURES

    o New package released in bioconductor

BUG FIXES

    o No changes classified as 'bug fixes' (package under active
    development)