Update 1.2.1 release notes

Author: msimberg

docs/sphinx/releases/whats_new_1_2_1.rst

@@ -16,32 +16,40 @@ General changes
 This is a bugfix release. It contains the following changes:
 
 * Fix compilation on ARM, s390x and 32-bit architectures.
-* Fix compilation with Boost 1.69.0.
 * Fix a critical bug in the ``future`` implementation.
 * Fix several problems in the CMake configuration which affects external
   projects.
+* Add support for Boost 1.69.0.
 
 Closed issues
 =============
 
 * :hpx-issue:`3638` - Build HPX 1.2 with boost 1.69
 * :hpx-issue:`3635` - Non-deterministic crashing on Stampede2
-* :hpx-issue:`3550` - 1>e:\000work\hpx\src\throw_exception.cpp(54): error C2440: '<function-style-cast>': cannot convert from 'boost::system::error_code' to 'hpx::exception'
-* :hpx-issue:`3549` - HPX 1.2.0 does not build on i686, but release candidate did
+* :hpx-issue:`3550` - 1>e:\000work\hpx\src\throw_exception.cpp(54): error C2440:
+  '<function-style-cast>': cannot convert from 'boost::system::error_code' to
+  'hpx::exception'
+* :hpx-issue:`3549` - HPX 1.2.0 does not build on i686, but release candidate
+  did
 * :hpx-issue:`3511` - Build on s390x fails
 * :hpx-issue:`3509` - Build on armv7l fails
 
 Closed pull requests
 ====================
 
+* :hpx-pr:`3695` - Don't install CMake templates and packaging files
 * :hpx-pr:`3666` - Fixing yet another race in future_data
-* :hpx-pr:`3663` - Fixing race between setting and getting the value inside future_data
+* :hpx-pr:`3663` - Fixing race between setting and getting the value inside
+  future_data
 * :hpx-pr:`3648` - Adding timestamp option for S390x platform
 * :hpx-pr:`3647` - Blind attempt to fix warnings issued by gcc V9
-* :hpx-pr:`3611` - Include GNUInstallDirs earlier to have it available for subdirectories
+* :hpx-pr:`3611` - Include GNUInstallDirs earlier to have it available for
+  subdirectories
 * :hpx-pr:`3595` - Use GNUInstallDirs lib path in pkgconfig config file
 * :hpx-pr:`3593` - Add include(GNUInstallDirs) to HPXMacros.cmake
-* :hpx-pr:`3591` - Fix compilation error on arm7 architecture. Compiles and runs on Fedora 29 on Pi 3.
-* :hpx-pr:`3558` - Adding constructor `exception(boost::system::error_code const&)`
+* :hpx-pr:`3591` - Fix compilation error on arm7 architecture. Compiles and runs
+  on Fedora 29 on Pi 3.
+* :hpx-pr:`3558` - Adding constructor `exception(boost::system::error_code
+  const&)`
 * :hpx-pr:`3555` - cmake: make install locations configurable
 * :hpx-pr:`3551` - Fix uint64_t causing compilation fail on i686