//example URL: vanillanav:navigateTo?venueId=8037&referenceId=19144
public func navigate(venueId: Int, destinationId: Int) -> Bool {
    let navigateUrl = NSURL(string: "vanillanav:navigateTo?venueId=\(venueId)&referenceId=\(destinationId)")!
    let sharedApp = UIApplication.sharedApplication()
    if sharedApp.canOpenURL(navigateUrl) {
        sharedApp.openURL(navigateUrl)
        return true
    } else {
        let storeUrl = NSURL(string: "itms-apps://itunes.apple.com/ro/app/vanillanav/id1007116984")!
        sharedApp.openURL(storeUrl)
        return false
    }
}