Introduce 'use warnings'.
Add README.md and a dummy test.
Change the type of variables.

It looks like hash variables were defined as arrays.
Handle import error; add docstring in the Python way.
Delete unused modules.
Add TODOs.
Change the levenshtein.pl as a module.
Fix the use of uninitialised value when @ARGV == 0.
Fix the test.
Write some documentation about the script to combine Japanese predicates.
Create a separate function to isolate the functionality from while loop.

Also, add the documentation.
Fix typo.
Forgot to remove debugging printf.
Merge remote-tracking branch 'tetsuok/add-docs'

Conflicts:
	adjust-alignments.pl