Changelog for package create_gazebo_plugins

2.3.1 (2015-02-27)

Update contact manager for Gazebo 2.0
add catkin_ignore due to the compile error. remove this when it is ready go
-Fix instantaneous odom getting computed, but not published (would alway publish 0 before)
Fix compilation on OS X (at least 10.9) - without this, linking fails.
replace deprecated shared_dynamic_cast (fixes #9)
fixes gazebo header paths (refs #7)
Contributors: Jihoon Lee, Marcus Liebhardt, Nikolaus Demmel, Samir Benmendil, Stefan Kohlbrecher, trainman419

publish odom and joint_states with absolute paths so they don't go under /turtlebot_node/ namespace.
adds bugtracker and repo info to package.xml