Add example configuration with new file permissions.
Fix tags getting cleaned with old files. Fix handling of file permissions. Fixes #12
Update README to explain new file mode options/defaults.
Fix !use_chmod mode.
Fix tag handling: empty string tags and incorrect array union. Fixes #13
Correct license in composer.json
Update license.
Oops, copy/paste mistake.
Doh.. Apparently switch is considered a looping structure for the purposes of continue..
Add example script in README for cleaning old files. Fixes #14
Merged with Upstream.