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
refactor spec for user accepting invitation
refactor spec for user email uniqueness
use variable for test password in invitation receive spec
change user variable to inviter in receive invitation spec
override invitations controller to add group id

- remove group_id hidden field from view

- add route for invitations controller to users

- add group_id to resource_params
replace call to group.id with group_id
Merge pull request #5 from gpallotta/invitable

Invitable