deleted activities now show a relevant message
add btn class to user sign up button
add DS_store files to gitignore
add clear button to claim search form
remove btn class from search form clear link
replace should validate_presence_of with valid_attribute
add test for user resetting password
add tests for content of weekly summary
add test for user redirection after sign in
implement devise invitable
add test for user entering invalid invite info
add test for a user sending an invitation
add test for user accepting invitation
remove localhost:3000 from weekly summary links
fix failing tests based on previous commit
add color indicator to claims index page

- red if unpaid, green if paid

- fix background being cut off
add back color to index page, refactor activity feed specs
refactor front pages spec
refactor group info spec
refactor spec for user accepting invitation