Use reverse_nearest_neighbor_num parameter: fix #563
Fix test for serializing unordered_map
Remove fstream from intern_test; stringstream is used instead
Use tempnam in code_test
Remove fstream from serialization_test
Use tempnam in sparse_matric_test
Fix test for serializing object
fix exception catch order
Merge pull request #585 from jubatus/fix-lof-reverse-nn-num

Use reverse_nearest_neighbor_num parameter: fix #563
Merge pull request #591 from gintenlabo/fix-jubatus-util-test-failure

Fix jubatus util test failure (fixes #582)
Merge pull request #592 from gintenlabo/fix-segfault-in-util-test

Fix SEGV in test for jubatus-util (fixes issue #583)
Merge pull request #594 from kmaehashi/fix-catch-order

Fix exception catch order to improve portability