adding source files to python path (was not on by default)

eclipse_project_setup/.pydevproject

@@ -2,4 +2,7 @@
 <?eclipse-pydev version="1.0"?><pydev_project>
 <pydev_property name="org.python.pydev.PYTHON_PROJECT_INTERPRETER">Default</pydev_property>
 <pydev_property name="org.python.pydev.PYTHON_PROJECT_VERSION">python interpreter</pydev_property>
+<pydev_pathproperty name="org.python.pydev.PROJECT_SOURCE_PATH">
+<path>/${PROJECT_DIR_NAME}</path>
+</pydev_pathproperty>
 </pydev_project>