Modify behavior of remove_row of lsh_index_storage before/after MIX.
Print log when error occurred during forwarding requests
Eliminate ADL (which is evil) from test of lof_storage
Add test for issue #721
Clear model before unpacking
Add dummy clear for clustering
Clear all model before deserializing, not on deserializing
Modify classifier_test
Merge pull request #735 from gintenlabo/clear-model-before-loading

Clear model before loading (fixes #721)
Merge pull request #733 from rimms/proxy_with_logging

Print log when error occurred during proxy is forwarding requests
Merge branch 'develop' into fix-681 and fix misses
Merge pull request #725 from jubatus/fix-681

Modify behavior of remove_row of lsh_index_storage before/after MIX.