Merge pull request #2 from emaphis/master

Add week 2 files
Update Expectations so we no longer need to remove the namespace symbols at the end.
Remove workaround that strips the namespace symbols at the end of each run.
Rename to use _ in filename to match - in namespace.
Also remove workaround code to strip namespace symbols.
Update README to reflect updated Expectations library (and no longer needing the workaround to strip the namespace symbols).
fold-dir solution
Add employees examples
Protocol-based example of trip, with additional function