Remove some lost references to credits
Define states using only one time the 'state' method
Remove campaign type
Remove unused notification views for project in analysis
Merge pull request #665 from neighborly/jl-remove-credits-references

Remove some lost references to credits
Merge pull request #666 from neighborly/jl-remove-campaign-type

Remove campaign type
Merge pull request #668 from neighborly/jl-remove-unused-notifications-view

Remove unused notification views for project in analysis
Add migration to remove campaign_type field from projects table
Merge pull request #670 from neighborly/jl-remove-campaign-type-field

Add migration to remove campaign_type field from projects table
Remove new_project_visible notification
Remove project_success notification
Remove project_owner_contribution_confirmed notification
Remove contribution_project_successful notification
Remove payment_confirmed_after_finished_project notification
Remove contribution_project_unsuccessful notification
Remove new_draft_project_channel notification
Remove project_received_channel notification
Remove project_rejected_channel notification
Remove project_visible_channel notification
Disable some notifications until Bonds MVP release

Even without sending, we want them be still part of the project.