which is basically the body of the pingServerRunnable available as
public part of the API. The intention is to allow 3rd party
components (e.g. Android's AlarmManager) to trigger the code.
The Pong class was harmful, as people could try to use it with
PacketTypeFilter, which wouldn't work, a Pong is just a plain IQ result
without child XML.
also remove faulty PongFilter from PingManager. It never matched any
stanzas, since a Pong is just a plain result IQ that is not qualified by
any XMPP Ping namespace.
Fixes SMACK-597
The idea that we abstract the scheduling of tasks on Android over this
method turned out to be unnecessary. schedule() was also not really part
of the *public* XMPPConnection API, so it's good that it's gone.
This method was never intended to be part of the public API. It's also
critical that the given Runnables complete within a reasonable
time frame so that they don't block following ones.
instead of using the old baseName=smack appendix=project.name approach,
we are now going convention over configuration and renaming the
subprojects directories to the proper name.
Having a prefix is actually very helpful, because the resulting
libraries will be named like the subproject. And a core-4.0.0-rc1.jar is
not as explicit about what it actually *is* as a
smack-core-4.0.0-rc1.jar.
SMACK-265
