----------------------------------------------------------------------
Version 1.2.2 - 2014-01-07
- add capability to enable tcp KEEPALIVE
- introduced new API relpSrvSetKeepAlive() to support KEEPALIVE
----------------------------------------------------------------------
Version 1.2.1 - 2013-09-26
- errors binding listener port are now reported via error message
  callback
----------------------------------------------------------------------
Version 1.2.0 - 2013-07-15
- support for epoll() added
  platforms that do not support it fall back to select()
- API extension: relpEngineSetOnGenericErr
----------------------------------------------------------------------
Version 1.1.5 - 2013-07-05
- bugfix: memory leak on connection close
  around 60 bytes of memory were lost on each connection close at the
  server side (when the client initiated a close)
- bugfix: potential misadressing on session close
  This can happen if also a write was outstanding, a quite unusable
  situation. In that case, already freed memory was being accessed.
----------------------------------------------------------------------
Version 1.1.4 - 2013-07-03
- fix build problems on BSD
  Thanks to Christiano for analysis and patch suggestion.
- add ability to specify a non-standard RELP Window size
- add burst support to the client API
  With this, we remove the unconditional performance improvement
  done in 1.1.3 - it is better to call the APIs explicitely.
- wildcards are now supported in TLS name peer authentication
  They follow RFC5425 recommandations, e.g.
  *.example.com, client*.example.com, client01.*.com
- new APIs: relpCltHintBurstBegin, relpCltHintBurstEnd,
  relpCltSetWindowSize
----------------------------------------------------------------------
Version 1.1.3 - 2013-06-26
- increased performance of RELP connection
- bugfix: potential segfault if no GnuTLS priority string was set
----------------------------------------------------------------------
Version 1.1.2 - 2013-06-24
- add capability to specify the GnuTLS priority string
  This gives callers complete control over crypto parameters, like
  ciphers to use.
- add certificate-based authentication
- add capability to specify number of Diffie-Hellman bits to use
- API extension: relpSrvSetDHBits, relpSrvSetGnuTLSPriString,
  relpSrvSetGnuTLSPriString, relpCltSetGnuTLSPriString
  relpEngineSetOnAuthErr, relpCltSetUsrPtr,
  relpSrvSetAuthMode, relpCltSetAuthMode
----------------------------------------------------------------------
Version 1.1.1 - 2013-06-11
- added compression support for TLS
- API extension: relpCltEnableTLSZip, relpSrvEnableTLSZip
----------------------------------------------------------------------
Version 1.1.0 - 2013-06-03
- add TLS support
- new api for creating listners:
  ... which permits us to set various properties before the listener
  is actually started. New callers should use it. Sequence is:
  * relpEngineListnerConstruct()
  * ... set properties ... (via relpSrv...() family)
  * relgEngineListnerConstructFinalize()
  This new style permits us to add/set additional listner options
  without the need to introduce ever-new listner create functions.
  Actually, their number would grow exponentionally, so this were
  a dead end.
  The old-style APIs relpEngineAddListner() and
  relpEngineAddListner2() are still fully supported (and supposed
  to be for a long time), but flagged as deprecated.
----------------------------------------------------------------------
Version 1.0.7 - 2013-05-13
- ABI change: removed relpCltConnect2() API which was against
  librelp API philosophy
  This was only introduced in 1.0.6 and been in the code for a very
  short time. So we decided that the best thing to do is actually
  remove it (there is NO known released user, this changes was for
  yet unreleased rsyslog 7.5.0).
----------------------------------------------------------------------
Version 1.0.6 - 2013-05-06
- enhanced API to permit binding a client to a specific IP address
----------------------------------------------------------------------
Version 1.0.5 (rgerhards), 2013-04-24
- bugfix: compile problem on Solaris
  Thanks to John Lyman for the patch
----------------------------------------------------------------------
Version 1.0.4 (rgerhards), 2013-04-11
- bugfix: busy loop on syslog sending as a client when server did not
  accept data; this was broken out only when the remote peer
  indicated that the connection as whole was broken. Now we properly
  timeout.
----------------------------------------------------------------------
Version 1.0.3 (rgerhards), 2013-04-10
- added relpCltSetTimeout() interface function
- improved timeout handling
  Note: default timeout is now consistently 90 seconds (there were
  some parts of the code where it were 10 seconds and at others
  they were 180).
- provide support for user-settable shutdown indicator
  This was introduced in support of rsyslog, but is probably useful
  for other users as well. In short, it provides the ability to set
  a pointer that is expected to be zero as long as the library shall
  continue to run and set to 1 if it shall terminate. That ptr is then
  checked at appropriate places of the library code.
----------------------------------------------------------------------
Version 1.0.2 (rgerhards), 2013-03-15
- added capability to support only IPv4/v6 instead of both
----------------------------------------------------------------------
Version 1.0.1 (rgerhards), 2012-09-06
- added capability to stop server without canceling its thread
- bugfix: interrupt of select() was not properly handled
  However, this caused no actual failure, just some unnecessary code
  execution (and confusing debug messages).
----------------------------------------------------------------------
Version 1.0.0 (rgerhards), 2009-12-11
This version of librelp matured in practice and it is now time for
a 1.0 release. Besides that, it includes a small number of
changes:
- bugfix: user callback never received remote IP address
- bugfix: offers builder did use a fixed size string without bounds
  checking. I don't think this was a real issue as it was not
  exposed to the outside world, but now the buffer dynamically
  grows (which is the right thing to do). Thank to mterry for alerting
  me.
----------------------------------------------------------------------
Version 0.1.3 (rgerhards), 2009-02-10
- the callback on message reception did not contain a way to pass on
  a caller cookie (e.g. for an instance pointer). An additional
  interface has been added to support that.
- cleaned up FDL license specifics
- added libtool versioning
- made librelp compile out of the box on FreeBSD - thanks to Michael
  Biebl for the patch
----------------------------------------------------------------------
Version 0.1.2 (rgerhards), 2008-04-09
- forward compatibility changes in support of our plans to use the
  rsyslog runtime in the future
----------------------------------------------------------------------
Version 0.1.1 (rgerhards), 2008-04-09
- improved build system, thanks to Michael Biebl
  now easier to integrate with autoconf
----------------------------------------------------------------------
Version 0.1.0 (rgerhards), 2008-04-01
- first version that is available to the public
----------------------------------------------------------------------
Version 0.0.1 (rgerhards), 2008-03-13
- very experimental and incomplete version, not to be used any longer
