Updates .gitignore
Adds Playlist.create method for playlist creation
Changes ipodio playlist command to ipodio playlist list

And also adds tests for the command handler.

This is because the spec:

	ipodio playlist [<name>]

clashes with

 	ipodio playlist create <name>

because the argument parsing thinks create is the first option' <name> positional argument.

This probably means that multiple level option parsers are to be implemented before having this kind of argument specification.
Adds playlist create command handler