Fix plugin loader to open from correct path: fixes #57
Fix plugin loader to open from correct path: fixes #57

roselleebarle04/jubatus,jubatus/jubatus,gintenlabo/jubatus,rimms/jubatus_core,gintenlabo/jubatus_core,kmaehashi/jubatus_core,mathn/jubatus,gintenlabo/jubatus,Asuka52/jubatus,kmaehashi/jubatus_core,kmaehashi/jubatus_core,gintenlabo/jubatus_core,rimms/jubatus_core,kmaehashi/jubatus,jubatus/jubatus,kumagi/jubatus_core,rimms/jubatus_core,elkingtonmcb/jubatus,mathn/jubatus,roselleebarle04/jubatus,elkingtonmcb/jubatus,kmaehashi/jubatus_core,rimms/jubatus,kumagi/jubatus_core,kumagi/jubatus_core,kmaehashi/jubatus,Asuka52/jubatus,kumagi/jubatus_core,gintenlabo/jubatus_core,rimms/jubatus,jubatus/jubatus,gintenlabo/jubatus_core,rimms/jubatus_core