Friend Recommendation Engine Local Version Example

This is the local version of the friend recommendation engine example built on the KDD 2012 Tencent Weibo data. Two basic algorithms, random and keyword similarity KNN, are implemented. Please refer to our README.md at https://github.com/RuiqingQiu/PredictionIO/tree/stable/examples/experimental/scala-local-friend-recommendation for more details. Thanks!
@GaryZhangUIUC , would you please update the code to limit 80 character per line?
please see http://docs.scala-lang.org/style/indentation.html#line_wrapping