membership request model and migration
FIX THIS COMMIT
rename for clarity
validates no membership/request
validates no membership/request
membership request factory
remove non-existent method
add specs
adds recommendations to group on creation
add choices specific to this group
allow alias when creating membership_request
has many membership requests
destroys invites and membership requests after create
can accept membership request to create membership
add search function to group
index route displays search results
add search groups field to user show page
display search results
limit to needed routes only
add membership_requests_controller