handle directories as cmdline args

In fact this is what Reek 0.2 used to do and I took it out. Let's do some design. If a commandline argument is a directory Reek should look at:

• all files called DIR/*.rb ?
• all files called DIR/*/.rb ?

So should this be a config-file option? What about a list of files to be excluded (eg. *_spec.rb)?

Currently Reek::RakeTask has an option to specify the set of files, and globs are permitted. So in a way this is already supported. Plus, most operating systems provide a way to find loads of files and pass them to the commandline, eg:

$ reek `find DIR -name \*.rb -print`

"app/models".should_not reek

is very sexy. Is

"app/models/**/*.rb".should_not reek

any less so?

Yes, I'll add some more factory methods to Source. In a few days...