Fix typo in docs
Java (Eclipse) compatibility of extensions, see #3469

* Eclipse JDT showed compilation error
  "The method get(ActorSystem) is ambiguous for the type..."
  for extensions defined with ExtensionKey
Minor touchups and cleanups in ActorSelection
Merge pull request #1563 from akka/wip-3469-ExtensionKey-patriknw

Java (Eclipse) compatibility of extensions, see #3469
add pipeToSelection support, see #3430

also add explanation to docs about what happens when Identify message
hits a non-existing path element
change line endings to CRLF for akka.bat
Replaced multi-line strings with \n and concatenation #3462

If multi-line strings are used, the encoding of the source file will determine the result. Since the same file generates *nix and Windows scripts, no encoding will be correct except if explicit \n markers are used.
Merge pull request #1567 from drewhk/wip-3462-akka-plugin-crlf-vs-lf-drewhk

Replaced multi-line strings with \n and concatenation #3462
Merge pull request #1566 from akka/wip-3430-pipeToSelection-∂π

add pipeToSelection support, see #3430
unhandled msg in cluster StressSpec
Removing the use of 'null' in LARS
Merge pull request #1565 from akka/wip-actor-selection-touchup-√

Minor touchups and cleanups in ActorSelection
Merge pull request #1569 from akka/wip-unhandled-msg-StressSpec-patriknw

unhandled msg in cluster StressSpec
fix yet another bug in LARS, see #3471

- the scheduler should round up the calculated slot instead of rounding
  down
- SchedulerSpec did not catch this because it added 5ms leeway (which is
  wrong and now removed)
- InboxActor exposed it by being really picky with early-firing timers;
  change that to be more robust
Merge pull request #1570 from akka/wip-the-great-un-nulling-√

Removing the use of 'null' in LARS
Fixing missing notFull-signal in BoundedBlockingQueue drainTo and clear
Error level remoting events are logged by default #3475
Trace all system actors
Keep the order of buffered messages in Camel producer, see #3477

* fix bug in java sample
* doc corrections
Reducing the use of intermediate datastructures for the ClusterMessageSerializer