[Issue #176] Adds contributing guide
Merge pull request #183 from 18F/feature/contributing_and_docs

[Issue #176] Adds contributing guide
Move VCR fixtures into spec/fixtures
Move test/fixtures -> spec/fixtures
Merge pull request #189 from 18F/feature/consolidate_fixtures

Feature/consolidate fixtures
added some steps for wiping out the dev db. might be useful
Merge pull request #157 from 18F/feature/uninstall_db_guide

added some steps for wiping out the dev db. might be useful
wip
wip