Merge pull request #1616 from drewhk/wip-actorselection-ask-test-drewhk

+act #3532: Add ask support for Java API
Merge pull request #1623 from drewhk/wip-3519-clusterrouter-supervisor-fix-drewhk

=clu #3519 Cluster router should use provided supervisor strategy
=act #3557 Improved semantics for BoundedBlockingQueue

- Blocking methods lock interruptibly
- drainTo can no longer drain to the backing
- drainTo/clear now calls signalAll instead of signal

Also made some other changes to make the code nicer (I hope!).
=act Fix typo in scheduler error message
Merge pull request #1653 from akka/wip-3527-remote-watch-uid-patriknw

=rem #3527 Take actor system uid into consideration in remote watch
Merge pull request #1661 from akka/wip-3015-s3-patriknw

=pro #3015 Upload dist to S3 downloads.typesafe.com
=doc #3539 Update the cluster spec

* The cluster spec has been rearranged into two sections describing the current cluster and future enhancements/additions.
* The state diagram has been replaced with a new one describing the current cluster implementation.
* A number of small additons and changes to the text.
=doc #3500 Add section about Dependency Injection
=cam #3541 Log Camel endpoint activation/deactivation failures as error
=rem #3527 Correction of match in reWatch
+rem #3504: Toned down error logging and made loglevel configurable
Merge pull request #1654 from taylorleese/more_cluster_client_docs

=con Add a few more details to the cluster client docs.
Merge pull request #1669 from oakwhiz/master

=act Fix typo in scheduler error message
Merge pull request #1677 from akka/wip-3500-doc-di-patriknw

=doc #3500 Add section about Dependency Injection
Merge pull request #1678 from akka/wip-3527-wrong-match-patriknw

=rem #3527 Correction of match in reWatch
=act #3525 Retry finishConnect after OP_CONNECT

Patch picked from https://github.com/spray/spray/commit/63648f17807035b4c17b5377ec67f5455a31e5a6
Merge pull request #1681 from drewhk/wip-3504-tone-down-remote-logging-drewhk

+rem #3504: Toned down error logging and made loglevel configurable
Merge pull request #1675 from akka/wip-finish-connect-retries-patriknw

=act #3525 Retry finishConnect after OP_CONNECT
=act, rem, clu #3521: make serialize-messages work with core modules
+act #3529 Add convenience helper for looking up an actor by identity

* ActorSelection.resolveOne