Merge pull request #29 from cjwillia/master

fixed issue 28 with jeremy's merge
wrote memebership model
Merge pull request #30 from jschiang/master

wrote memebership model
factorygirl gem added
forgot to add actual validations for private methods
wrote affliation model + fixed some membership stuff
Merge pull request #32 from jschiang/master

forgot to add actual validations for private methods
Merge branch 'master' of https://github.com/sankalpk/gelfand into factorygirl
starter factorygirl code added