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* New Features
* recommender
* support fast similar item search, real-time update, distributed data management
* inverted index : exact result, fast search
* locality sensitive hash : approximate result, fast search, small working space
* regression
* online SVR using passive agressive algorithm
* as fast as current classifier
* stat
* a Key(string)-Value(queue<double>)
* O(1) cost of getting sum, standard deviation, max, min, statistic moments for each queue
* server framework
* less-tightly coupled distributed processing framework with each ML implementation
* idl & code generator - make it easy to write own jubatus system
* removed public release of client libraries (so easy to generate!)
* multiple mix - mutiple data objects can be mixed in one jubatus system
* Bugfix
* duplicate key entry in fv_converter breaks the parameter