Obsoleted actor producer pipeline extensions

* Restart Flow/Sink/Source

* Added RestartSource specs

* More tests and docs

* Ported all tests

* Fixed sink test

* fix specs

* Added docs

* Added timeout

* Increased timeouts for mono

* Fixed broken links in README.md

* Fixed broken link to docs

"groupId" -> GroupId
"deviceId" -> DeviceId

* MergePrioritized implementation

* first tests

* more tests

* GraphDsl fix

* optimized tests

* Fixed MergePrioritized_must_stream_data_from_all_sources test

* fixed tests

* fix api reviews

create TaskCompletionSource with RunContinuationsAsynchronously; otherwise wrap .TrySetResult in Task.Run

* Added web.config for redirect

* Added web config to resource definitions

Rest of the changes are due to auto indentation fix

* fsharp netcore

* just for CI

* fix

* fix sln

* Improve Streams IO docs

* fixed remarks

* changed example

* Fixed an example

* api approval

Serilog docs page is accessible (http://getakka.net/articles/utilities/serilog.html) but not visible in the table of contents.

#3138)

* Fixed performance degradation if recovering with big numbers of snapshots

* Workaround for memory leak in DBCommand

…a.Tests.Shared.Internals, which is not public. (#3139)

Replaced usages of "Should" extension assertions with ITestKitAssertions as to not require Akka.Tests.Shared.Internals.

…3142)

* Fix in resolving serializer id

Serializer id is now only determined once, upon initialisation. And its
the serializer implementation which dictates where that id comes from.
We no longer assume it always comes from the hocon config.

* Forgot the nullserializer case.

* Api Approval

* Updated according to remarks

* Added spec

* Fix tests

* Fix copyright notice

* Fix links not being clickable above an h2

* Fix links

Updated Xunit to the stable version

ported from akka/akka#21306
closes 3222

…itionSource

Ask deadlock - proof of concept

- Address serilog colored console requirement.
- Remove requirement for "SerilogLogMessageFormatter" as code examples
appear to run without specifying the formatter.
- Add an example of how an output template is configured for the
extensions demo.
- Remove use of serilog application configuration in code from the hocon
example, but mention it as a feature of serilog.

* Cluster.JoinAsync / Cluster.JoinSeedNodesAsync

* Cluster.JoinAsync: updated API approvals

* added Cluster.JoinAsync exceptions

* removed API approvals received.txt

* added test cases for failure scenarios

* added double checks for success/failure scenarios

* Fix exception that can occur when remaining and unreachable variables both have zero elements

Retry stage

Improve type safety for custom graph stages

If remaining and unreachable lists are empty an exception will be
encountered as soon as .First() is executed to try to find the oldest
node

Fixed weaklyup nodes stuck at joining