Remove unused TODO file

Replaced by GitHub Issues.
Remove executable attributes and shebang line
Remove activesupport dependency

Add unf dependency for doing Unicode normalization.
Merge pull request #86 from sferik/remove_todo

Remove unused TODO file
Merge pull request #87 from sferik/rakefile

Remove executable attributes and shebang line
Merge pull request #67 from sferik/remove_activesupport_dependency

Remove activesupport dependency
Upgraded to the latest conformance suite
Upgraded to the latest conformance suite
support cctld .sx
Upgraded to the latest conformance suite
v1.6.1 for .sx tld
organize cctld