{
 "track": "METEOR",
 "version": "1.2-rc.17",
 "recommended": false,
 "official": false,
 "description": "Preview release of Meteor 1.2"
}

{
 "track": "METEOR",
 "version": "1.2-rc.18",
 "recommended": false,
 "official": false,
 "description": "Preview release of Meteor 1.2"
}

Bump release version to RC 18
Bump release version to RC 18
