Merge branch 'release/0.5.1' into develop
Wrote about range of config (ja)
Use 値域 instead of 推奨値, Remove *_MAX
Remove table of MAX and MIN values
Wrote about range of config (en)
Fixed sample config of clustering
Merge remote-tracking branch 'origin/master' into develop
Merge pull request #116 from rimms/wrote_about_range_value_of_config

Write about range of configuration values
fix typo of nearest_neighbor_recommender:* method in recommender API
Merge pull request #122 from jubatus/fix-recommender-typo

fix typo of nearest_neighbor_recommender:* method in recommender API
bump version
Merge branch 'release/0.5.2'