Updated mailroom.py with dicts and files.
Created count_evens.py
Adding dict_set_comprehensions.py
Adding README.md
Merge pull request #129 from ErickaMJohnson/session1

Adding README.md
Merge pull request #125 from brentnunn/master

Updated mailroom.py with dicts and files.
Merge branch 'master' of github.com:codefellows/sea-c15-python