=act:3478 don’t fail constructor at end of hierarchy stress

- also increase the overall test timeout by 20sec to make it more stable
  on slower (but still normal) hardware
=act:3152 Add doc to LoggingAdapter
Merge pull request #1606 from akka/wip-3478-failConstr-∂π

=act:3478 don’t fail constructor at end of hierarchy stress
=clu:3152 Improve scaladoc of cluster
Merge pull request #1604 from akka/wip-migration-fix-patriknw

DOC: Fix compilation error in migration guide
=doc:3472 Updated Stash docs to reflect new mailbox requirements
Merge pull request #1607 from akka/wip-3152-scaladoc2-patriknw

More scaladoc improvements, see #3152
Merge pull request #1584 from drewhk/wip-3472-doc-stash-mailbox-drewhk

=doc: Updated Stash docs to use mailbox requirements #3472
=pro #3488 update to config library 1.0.2
update CONTRIBUTING.md to express commit message rules
Merge pull request #1608 from akka/wip-3488-config-1.0.2-∂π

=pro #3488 update to config library 1.0.2
Merge pull request #1609 from akka/wip-update-CONTRIBUTING-∂π

update CONTRIBUTING.md to express commit message rules
switch master to 2.3-SNAPSHOT
=doc #3167 Image clarifying paths, incarnations, UIDs, ActorRefs and Selections.
Merge pull request #1611 from drewhk/wip-3167-illustration-actor-lifecycle-drewhk

=doc #3167 Image clarifying paths, incarnations, UIDs, ActorRefs
Merge pull request #1610 from akka/wip-2.3-SNAPSHOT-∂π

switch master to 2.3-SNAPSHOT
=pro #3019 Migrate the actor copy reference actions to a resourceGenerator.

This ensures that the resources are generated on demand, when needed
by the build.  They also don't clutter the git repository.
Also create an intermediate setting to clean up some of the code.
!act Marked StashWhen* marker traits as internal API
Add explanation and example for 'Secure Cookie Handshake' to akka-sample-remote

Added some commented out configuration items to provide an example of how to use
the Secure Cookie Handshake feature. Users can simply uncomment to try it out

Added an indication in the application.conf file that the remote.netty.tcp.port is
actually the LISTEN port.
=doc add work pulling pattern to list of patterns

I've added it just underneath Derek's pattern as it's based on that one.