update 'Recommended versions' to reflect latest security updates ( 0.2.4.5-alpha / 0.2.3.24-rc)

Remove tor releases before 0.2.4.5-alpha / 0.2.3.24-rc from 'recommended versions' to inform

https://lists.torproject.org/pipermail/tor-talk/2012-October/026184.html https://lists.torproject.org/pipermail/tor-talk/2012-October/026185.html

https://metrics.torproject.org/consensus-health.html#recommendedversions