Rename Preprocessor to PreprocessorPuddis and create abstract Preprocessor to extend from
Clean up list Datasets to reflect changes in preprocessors
Reflect renaming changes in Test.java
Remove usage of deprecated method in KiwiRecommender
Moved model serialization from SMDataModel code to Preprocessor
Reflect renaming changes in SMRMSEevaluator
Merge branch 'clean-up-preprocessing-code'

* clean-up-preprocessing-code:
  Reflect renaming changes in SMRMSEevaluator
  Moved model serialization from SMDataModel code to Preprocessor
  Remove usage of deprecated method in KiwiRecommender
  Reflect renaming changes in Test.java
  Clean up list Datasets to reflect changes in preprocessors
  Rename Preprocessor to PreprocessorPuddis and create abstract Preprocessor to extend from

Conflicts:
	src/edu/ntnu/idi/goldfish/DataSet.java
	src/edu/ntnu/idi/goldfish/Main.java
	src/edu/ntnu/idi/goldfish/mahout/SMDataModel.java
	src/edu/ntnu/idi/goldfish/preprocessors/Preprocessor.java