This commit adds the missing feature of allowing the server owner to
provide a reason for kicking/banning a client, which the client sees in
a pop-up window after being kicked. The implementation extends the
network protocol by adding a new network action called
NETWORK_ACTION_KICKED that is capable of having an error string, unlike
the other network error packages. Additionally, the kick function
broadcasts a message to all clients about the kicked client and the
reason for the kick.
This caused drawing areas larger than 2097151 pixels at 8x zoom to
not be subdivided into smaller chunks as required.
This resulted in pathological performance issues in the sprite sorter.
The original algorithm pays intermediate legs in feeder systems based
on the start and end stations of that particular leg.
This tends to result in large negative payments on the final leg for
journeys with many feeder legs, as the overall feeder payment increases
with the number of legs, and the final leg is penalised for discrepancies
between the previous leg payments and the actual payment for delivery
from the source to the destination.
The feeder share setting is a partial mitigation, however it is difficult
to tune as a suitable value depends on the number of legs and the network
topology, which are often not the same for all vehicles.
The new incremental algorithm pays the cargo payment from the source
station to the end station of the current leg, minus any previous
transfer feeder payments for each leg.
This prevents unbounded increase of feeder payments and therefore avoids
the issue of excessive negative payments on the final leg.
Feeder payments may be negative, e.g. in the case of poorly performing
or highly indirect legs. This is better than penalising the final leg.
This mode reduces the need to tune the feeder shares setting to the
current network.
The feeder share setting applies in the existing way.
