Make HTTPRL on D7 fully compatible with PHP 7

Drupal 7 is PHP7 compatible since today and I tried it and my site just crashed because of httprl.

[Sun Jul 03 22:59:57.311158 2016] [:error] [pid 3168:tid 1844] [client ::1:54149] PHP Fatal error:  'continue' not in the 'loop' or 'switch' context in httprl\\httprl.module on line 1418

>php7cc --extensions=install,module,inc,test ./httprl

File: httprl\httprl.module
> Line 1928: Possible array element creation during by-reference assignment
    $options['internal_states']['background_function_printed'] =& $callback_options['printed'];
> Line 2489: Nested by-reference foreach loop, make sure there is no iteration over the same array
    foreach ($data['args'] as &$arg) {
    }

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