Move database .json files to own directory.
Move data filee to data directory. Move utilities to utils directory.
Change directory. Improve checks/updates based current status and group setting.
Change directory. Vary seed (and multiplier) in addition to hash table size.
Move data file location. Additional tests for non-string inputs.
Handle non-string parameters without an error.
Handle non-string args. Map empty string to None/None.
Allow hash table seed, size and multiplier parameters to be set from database parameters.
Handle size, seed and multiplier hash table parameters. Move data files to data/ directory.
Move to utils/ directory.