This release fixes various issues.

*Fixes*

  * Fix compile error on gcc 4.9
  * Fix warnings in clang 7
  * Fix self-assignment
  * Fix early destruction of server sessions
  * Fix crashes in multithreaded environment (#175)

*Additions*

  * Support calling `rpc::this_server().stop()` from a server procedure (#187)
  * Make rpclib compatible with codebases that do not use exceptions
  * Add `server::port()` to query the port used by the server
  * Set `reuseaddress` option on the server

Released v2.2.1

Released v2.2.0

Released v2.1.1

Tagged v2.1.0 release.

doc: updated changelog

Added v2.0.0 tag.

Tagged release 1.0.0

Added v1.0.0-pre2 tag

Changed tag name format