must export a variable called FILE_VAULT that contains the root of the file vault.
file vault locations:
./file_vault.sqlite ./unrecognized/[timestamps]/mirror_of_orifinal_file_path
links will not be stored
actions:
build_index(empties the database and rebuilds it)check_index(verifies that all files in the vault are accounted for in the database)store [file]move [file]store the file and erase the source file