Add release notes for 1.4.1

docs/sphinx/releases/whats_new_1_4_1.rst

@@ -0,0 +1,49 @@
+..
+    Copyright (C) 2007-2020 Hartmut Kaiser
+
+    SPDX-License-Identifier: BSL-1.0
+    Distributed under the Boost Software License, Version 1.0. (See accompanying
+    file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+.. _hpx_1_4_1:
+
+===========================
+|hpx| V1.4.1 (Feb 12, 2020)
+===========================
+
+General changes
+===============
+
+This is a bugfix release. It contains the following changes:
+
+* Fix compilation issues on Windows, FreeBSD, and gcc 10
+* Install missing ``pdb`` files on Windows
+* Allow running tests using an installed version of |hpx|
+* Skip MPI finalization if HPX has not initialized MPI
+* Give a hard error when attempting to use IO counters on Windows
+
+Closed issues
+=============
+
+* :hpx-issue:`4320` - HPX 1.4.0 does not compile with gcc 10
+* :hpx-issue:`4336` - Building HPX 1.4.0 with IO Counters breaks (Windows)
+* :hpx-issue:`4334` - HPX ``Debug`` and ``RelWithDebinfo`` builds on Windows not
+  installing ``.pdb`` files
+* :hpx-issue:`4322` - Undefine VT1 and VT2 after boost includes
+* :hpx-issue:`4314` - Compile error on 1.4.0
+* :hpx-issue:`4307` - ``ld: error: duplicate symbol: freebsd_environ``
+
+
+Closed pull requests
+====================
+
+* :hpx-pr:`4357` - Adding missing ``#include``\ s to fix gcc V10 linker problems
+* :hpx-pr:`4353` - Skip ``MPI_Finalize`` if ``MPI_Init`` is not called from HPX
+* :hpx-pr:`4343` - Give a hard error if IO counters are enabled on non-Linux
+  systems
+* :hpx-pr:`4337` - Installing pdb files on Windows
+* :hpx-pr:`4335` - Adding capability to buildsystem to use an installed version
+  of HPX
+* :hpx-pr:`4315` - Forcing exported symbols from composable_guard to be linked
+  into core library
+* :hpx-pr:`4310` - Remove environment handling from ``exception.cpp``