A user can upload an avatar to describe who they are as a person and as
a user of this website.  I used paperclip to implement this feature.
Gitignore now has ignored all of the images paperclip saves.  I updated the
stylesheets to only run to the width of a page as well.
Merge pull request #2 from a2k11/add_image_to_user

A user can upload an avatar to describe who they are as a person and as