Rename parameters to hash_num indicating a number of hash functions
Fix parameter names of config examples
Replace lsh_num to hash_num in the comment
Merge branch 'develop' into feature/rename_to_hash_num
Fix forgotten renaming
Merge pull request #454 from jubatus/feature/rename_to_hash_num

Rename parameters indicating the length of hash values to ``hash_num``
FIx anomaly example: refs #454