this is not a complete changeset, but it's sufficient to get servers back online.
There are additional changes to PlayerAuthInputPacket which need to be reversed.
On larger packets, this worsens compression ratio by 1-2%, but reduces CPU load due to compression by 15-20%. Higher levels than 6 are far more expensive for diminishing returns.
Level 5 produces a further 25-30% CPU reduction, but increases bandwidth usage by 20-25%, so 6 is the sweet spot.
this version doesn't change any packets as far as I know, but it does change some packet content (most notably, some blockstates changed, which are troublesome when not in sync).
the old limit was made in the php5 days when performance was far worse and it was much more costly to generate chunks that weren't needed. Now it's significantly less and having a higher limit allows terrain to be sent more quickly in new worlds and to fast-moving players.
This limit really ought to go away completely but considering the technical barriers in the way it'll have to stay for now.
This reverts commit 06ec8b8397.
unfortunately, this had some unanticipated side effects, thanks to
idiotic behaviour in the client ... when having optional downloads but
trying to force resources, the client chokes because it thinks the
server is forcing it to apply a pack that it doesn't have. Since
there's no way to detect when this problem occurs in the protocol, the
only option is to revert this.
this message just confuses end users and is of little use to a developer. It doesn't make any sense to make a special case for events when we have lots of other deprecated things to think about anyway which won't be shown warnings for.
This allows to save the language without rewriting pocketmine.yml. Since this is a "standard" config option (something that the user might want to directly modify) it's reasonable to put it in server.properties. pocketmine.yml is generally reserved for more advanced configuration options.
