move ratings.html snippet

it is inside if block that checks for extent; ratings should show up whether or not there is a map extent. move the snipped call after the endif.
Merge pull request #485 from ngds/fix-ratings-without-extent

should fix #465
change language for ratings stars

issue #447
rethink 'ratings' section-- include a button for 'report faulty dataset', then maybe some leading statements for ratings, like
'inappropriate'
'content not what I expected'
'doesn't include information I need'
'good enough to download'
'provides the information I need'
Merge pull request #486 from ngds/ratings-text-update

change language for ratings stars
Merge branch 'master' into activity_stream