add approved to params
add approved to form
add approved column to db
add test for approved
add scope to only show approved tips
controller for approving tips
routes for approving tips
views for approving tips
scope for tips that need to be approved
Added tests for tips approve
Make title more descriptive
approve tip testing made more logical
Make approved true by default when using admin form to create new tip

When in admin, we know Transavia is creating a tip, so we can make it approved
re-enable category field for now
Merge remote-tracking branch 'origin/develop' into feature/approve_tips
Merge branch 'refs/heads/develop' into feature/approve_tips

Conflicts:
	db/schema.rb
show link in tips index
Merge pull request #4 from wirelab/feature/approve_tips

Approve tips before showing