support j2k and h2k

Signed-off-by: Hiroshi Miura <miurahr@linux.com>
fix option char as same as original kakasi

Signed-off-by: Hiroshi Miura <miurahr@linux.com>
add k2h

Signed-off-by: Hiroshi Miura <miurahr@linux.com>
fix error on py3.2

Signed-off-by: Hiroshi Miura <miurahr@linux.com>
Merge pull request #10 from miurahr/support_j2k_h2k

Katakana-Hiragana conversion