Any thoughts on organizing the files into directories?

1. This makes things more organized, which may be useful as more stuff is added.
2. Having some files in the main directory is a pain. For example, we can't have Travis run syntax checks on the files for us, because the example .travis.yml is in the main directory.

I'm thinking of something like this:

travis/
 - .travis.yml
 - before_script.sh
 - after_script.sh
 - script.sh
readme/
 - class-wordpress-readme-parser.php
 - generate-markdown
phpunit/
 - plugin-bootstrap.php
 - plugin.xml
etc.

The only issue is that this isn't backward compatible, which might be a deal-breaker. 😦