bumped version to 0.2.4 for groovy release
hector_geotiff/hector_geotiff_plugins: fixed warnings for deprecated pluginlib method/macro calls
hector_geotiff: moved header files from include/geotiff_writer to include/hector_geotiff
hector_geotiff_plugins: use hector_geotiff_plugins/TrajectoryMapWriter as legacy lookup name for the trajectory geotiff plugin to not break old launch files
respect p_map_frame_

Pose messages had the frame hardcoded as 'map' rather than respecting the parameter value.
hector_geotiff_plugins: readded PLUGINLIB_DECLARE_CLASS macro for fuerte compatibility
Merge branch 'patch-1' of https://github.com/dawonn/hector_slam
hector_slam_launch: updated rviz config to the new .rviz format
Merge branch 'master' into catkin

Conflicts:
	CMakeLists.txt
	hector_geotiff_plugins/src/trajectory_geotiff_plugin.cpp
updated changelogs for 0.3.1 release
"0.3.1"