bump up version

add debug support to graphcms commands. Every API call will have the …

…query and response logged to the screen.

update version date

Simple ghetto implementation of version

Add a placeholder implementation of version.  This should be injected via CI or some other build process.

Update readme

add support for config override for complex pluralizations

You can add exceptions in the config now, e.g.

exceptions:
    plurals:
        Wife: Wives

MVP of cmsutil for GraphCMS v2 API

Add support for a subfolder with the download command