show osra_num in index view in place of id but still link to ids in link
tests and method to return affiliate from sponsor
show affiliate and osra_num in sponsor view
removed 3 columns from organization model / table

part of PT story https://www.pivotaltracker.com/story/show/79157840
- created migration to remove the fields
- cleaned model to represent new state
- made rspec tests match new requirements
- amended the organization factory
- changed features to represent new model
- changed fields shown in active admin views
fixed errors in db schema file
remove unneeded params line from spec model
Routing specs for organizations
Routing specs for orphans
Routing specs for partners
Routing specs for orphan lists
Routing specs for sponsors
refactor sponsor_spec grouping related tests within contextx
changed affiliate method form standard conditional to ternary
refactored branch_or_organization tests for clarity
Merge pull request #49 from PurityControl/sponsor_refactor

Sponsor refactor
Merge pull request #52 from PurityControl/org_refactor

removed 3 columns from organization model / table
Merge pull request #53 from sampritipanda/delete_specs

Routing Specs
Change controller, routes & views; remove composite index from sponsorships
Re-sponsoring previously sponsored orphan works
Create validation for duplicate active sponsorships