Update CHANGELOG for first ROS2 release

Author: wxmerkt

CHANGELOG.rst

@@ -2,54 +2,9 @@
 Changelog for package octomap_ros
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
-0.4.1 (2020-04-23)
-------------------
-* Added archive destination for static libraries (`#10 <https://github.com/OctoMap/octomap_ros/issues/10>`_)
-* Fix catkin_lint issues and cmake policy CMP0038 (`#9 <https://github.com/OctoMap/octomap_ros/issues/9>`_)
-* Update maintainer emails
-* Contributors: Andrea Ponza, Armin Hornung, Sebastian Kasperski, Wolfgang Merkt
-
-0.4.0 (2014-04-17)
-------------------
-* Dropped PCL support in favor of sensor_msgs::PointCloud2.
-
-0.3.1 (2014-04-16)
-------------------
-* Fixing `#3 <https://github.com/OctoMap/octomap_ros/issues/3>`_ (explicit instantiation in conversions.cpp)
-
-0.3.0 (2013-05-03)
-------------------
-* Removed deprecated OctomapROS class
-
-0.2.6 (2013-01-05)
-------------------
-* fixes for cmake / catkin
-
-0.2.5 (2012-12-08)
-------------------
-* catkin fixes
-
-0.2.4 (2012-11-11)
-------------------
-* adding include installs
-* catkin fixes
-* fixing octomap_msgs dependency
-
-0.2.3 (2012-10-29)
-------------------
-* catkinizing octomap_ros
-
-0.2.2 (2012-10-01)
-------------------
-* catkinizing octomap_ros
-
-0.2.1 (2012-09-04)
-------------------
-
-0.2.0 (2012-08-24)
-------------------
-* Further renaming, improved compat. with groovy (server won't compile yet though)
-* Updated octomap_ros to new-style stack.xml
-* manifest / doxygen for octomap_ros & octomap_msgs
-* deprecated OctomapROS in octomap_ros => directly use octomap lib and conversions.h
+Forthcoming
+-----------
+* ROS2 Migration (`#14 <https://github.com/OctoMap/octomap_ros/issues/14>`_)
+* Create ros2 branch off of `melodic-devel` at 0.4.1. Cf. `melodic-devel` for original CHANGELOG
+* Contributors: Wolfgang Merkt, wep21