Quick hack to fix #17

Work-around that fixes a runtime error:

Runtime error: #<ArgumentError: Logger must have a name>
/var/lib/gems/1.8/gems/r10k-0.0.10/lib/r10k/logging.rb:12:in `new'
/var/lib/gems/1.8/gems/r10k-0.0.10/lib/r10k/logging.rb:12:in `logger'
/var/lib/gems/1.8/gems/r10k-0.0.10/lib/r10k/module/forge.rb:44:in `sync!'

May not be the best solution, it at least allows r10k to run.