removed all traces of list model and tests
added default group functionality. when a user is signed in they should default to see the first group in their group list.
added a few basic cosmetic changes to group show page. wrote another failing test for puchases page functionality
added purchases index show. Can now see all of a particular groups purchases once you click on the purchases link. The home page will list the ten most recent purchases on the right side panel. all tests are passing.
scope purchases view to a user's group's purchases
added group functionality, a user who creates a group can add someone with an email address to their group
change add member to group button and redirect user back to default group show instead of groups index
add .env to git ignore
added purchase photo uploade for receipt for purchase, the upload is optional and in development stores photos with AWS with fog storage. Have yet to deploy and test photo storage on staging and production environments