2003.1.2 release (#45)

* Update changelog for 2003.1.2 release

* 2003.1.2

* capitalize Boost in changelog

3.1.1 release (#43)

* 3.1.1 release

* update version numbers for ros2

3.1.1 release (#43)

* 3.1.1 release

* update version numbers for ros2

3.1.0 Release (#41)

* Update changelog for 3.1.0 release

* 3.1.0

3.0.0 Release (#27)

* Update changelog for 3.0.0 release

* 3.0.0

* Update changelog to include recent changes

* Update release date

Adding changelog for ROS release.