Changes since last commit:
* Don't discard all rtt samples after fast recovery in min RTT probing
* Enter LAUNCH after sufficient idle period
* Fix outdated comments
* Apply snd_cwnd_clamp everywhere
* Remove possibility for double ROCCET CE in ORBITER
* Fix incorrect implicit s32->u64 cast for `sent_more_than_acked`
* Fix some incorrect parameter resets on roccet_reset
Changes since last commit:
* Don't discard all rtt samples after fast recovery in min RTT probing
* Enter LAUNCH after sufficient idle period
* Fix outdated comments
* Apply snd_cwnd_clamp everywhere
* Remove possibility for double ROCCET CE in ORBITER
* Fix incorrect implicit s32->u64 cast for `sent_more_than_acked`
* Fix some incorrect parameter resets on roccet_reset