Missed python module definition and setup.py script (#364)

Merged commits:

* missed python module definition and setup.py script
* clean the __init__ file

ur_kinematics/CMakeLists.txt

@@ -8,6 +8,8 @@ find_package(catkin REQUIRED COMPONENTS roscpp geometry_msgs moveit_core moveit_
 
 find_package(Boost REQUIRED COMPONENTS system)
 
+catkin_python_setup()
+
 catkin_package(
   INCLUDE_DIRS include
   LIBRARIES ur3_kin ur5_kin ur10_kin ur3_moveit_plugin ur5_moveit_plugin ur10_moveit_plugin

ur_kinematics/package.xml

@@ -26,6 +26,7 @@
   <build_depend>tf_conversions</build_depend>
   <build_depend>boost</build_depend>
 
+  <run_depend>rospy</run_depend>
   <run_depend>moveit_core</run_depend>
   <run_depend>moveit_kinematics</run_depend>
   <run_depend>moveit_ros_planning</run_depend>

ur_kinematics/setup.py

+#!/usr/bin/env python
+
+from distutils.core import setup
+from catkin_pkg.python_setup import generate_distutils_setup
+
+d = generate_distutils_setup(
+   ##  don't do this unless you want a globally visible script
+   # scripts=['bin/myscript'], 
+   packages=['ur_kinematics'],
+   package_dir={'': 'src'}
+)
+
+setup(**d)