* add support to include xacro definition recursively
1.2.1
* add common macro : `geometry_sphere` and `inertia_sphere`
1.2.0
* add common macro `<xacro_define_macro>` for sphere : `inertia_sphere` and `geometry_sphere` * update common macro params for `geometry_xxx` : `filename` is renamed to `uri`
1.1.0
* the parameter `url` of `<xacro_include_definition>` and `<xacro_include_model>` is renamed to `uri`