Add cool npm pictures to readme
Remove experimental warning

The project has been around for awhile and nobody has complaiend about
eaten configs and there is already a warning elsewhere in the readme, so
I'm removing it.
Add `meta` object to spec and themes

If `description` is present, it must be a string less than 140
characters long and should briefly describe the purpose of the object.
Add the --list-all cli option

The option --list-all will list all available themes.
Bump to version 0.1.0