func tableView(tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {

func tableView(tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {

func tableView(tableView: UITableView, viewForHeaderInSection section: Int) -> UIView? {

        var header = tableView.dequeueReusableCellWithIdentifier("userheader") as UITableViewCell
        
        //arrayOfArraysOfContacts is a 2D array of contacts by section
        //Each contact has an accountID, and we pull the first one on each section
        var id = contactsManager.arrayOfArraysOfContacts[section][0].accountId
        
        //We use the ID to find the correct corresponding account in a dictionary
        var account : Account? = AccountsManager.sharedInstance.allAccountsAsDictionaries[id!]

        //And populate the header with the name of the account
        header.textLabel?.text = account!.name
        header.textLabel?.textColor = UIColor.blackColor()
        header.contentView.backgroundColor = UIColor.whiteColor()
        return header
}