Release 1 (2014-03-01)
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  NEW FEATURES

  * initial release

Release 2 (2014-07-20)
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  NEW FEATURES

  * Added the profile-based representation for proteins derived by PSSM

  DOCUMENTATION

  * Added a vignette which grouped similar functions into the same category. 
  See vignette('Rcpi-quickref') . This makes the package structure clearer 
  and enhances its usability.
  * Other documentation improvements