added trial table and trial_id to coordinator table
created route for trial#show and added test for trial model
added participant has_one trial association
Removed coverage folder yet again.
Merge branch 'master' of https://github.com/kexline4710/PatientEngagement into trials_branch
added integration test for trial info commented out sequence :email
issue with tests added command to spec_helper.rb
Merge pull request #35 from kexline4710/trials_branch

Trials branch