Jubatus

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* Improvements
* anomaly: improve ``get_status`` to return additional metrics (1194, 1203)
* Remove workaround code in RPM package builder (1195, 1202)

* Bug fixes
* Fix output of ORB plugin (1196, 1201)

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* Changes to Supported Systems
* Deprecate Ubuntu 12.04 LTS support (1189)

* Improvements
* Validate save/load RPC arguments (1188, 1192)
* Model files generated in earlier versions of Jubatus can now be loaded (1179, 1187)
* Improve packaging process (1185, 1186)

* Bug fixes
* classifier/regression: fix performance regression in standalone mode (1190, 1193)

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* Changes to Supported Systems
* Ubuntu 16.04 LTS is now officially supported (1180, 1181)

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* Improvements
* Support OpenCV 2.0 in image extraction plugin (1168, 1174, 1175)
* fv_converter plugin loading code moved to Jubatus Core (1171)
* Improve Dockerfile (1170, 1172, 1173)

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* New Features
* Add image extraction plug-in (843, 1150)
* Add configuration validation feature (973, 1144)

* Improvements
* clustering: change APIs to accept ID-based datum (1155)
* Update Dockerfile to use Ubuntu 14.04 (1146)
* Improve ``--daemon`` option of server and proxy to detach from console (1072, 1148)
* classifier: models are now compatible in standalone and distributed mode (469, 1153)
* Change the default log level to INFO instead of DEBUG (1152)
* Update example configurations (1165)
* Update manpages (1167)
* Update packaging tools (1157)

* Bug fixes
* graph: fix IDs being reused when loading model file to other server instance in standalone mode (1149, 1156)

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* Improvements
* Improve error detection of log4cxx config file (891, 1142)
* Print DEBUG logs by default (947, 1143)
* Support printing logs in UTF-8 (1078, 1140)
* Improve comment in wscript (1138, 1139)

* Bug fixes
* Fix missing locks in mixer (1092, 1135)
* Fix RPM packaging tool to work on RHEL 6.x (1137)