Implement pack/unpack function in recommender/euclid_lsh
Implement pack/unpack function in recommender/euclid_lsh

rimms/jubatus_core,kumagi/jubatus_core,rimms/jubatus_core,gintenlabo/jubatus_core,kmaehashi/jubatus_core,kumagi/jubatus_core,kmaehashi/jubatus_core,kumagi/jubatus_core,rimms/jubatus_core,kmaehashi/jubatus_core,rimms/jubatus_core,gintenlabo/jubatus_core,kumagi/jubatus_core,gintenlabo/jubatus_core,gintenlabo/jubatus_core,kmaehashi/jubatus_core