changed entity from Material to material

pybis/src/python/pybis/material.py

@@ -9,11 +9,11 @@ class Material(OpenBisObject):
     """
 
     def __init__(self, openbis_obj, type, data=None, props=None, **kwargs):
-        self.__dict__['entity'] = 'Material'
+        self.__dict__['entity'] = 'material'
         self.__dict__['openbis'] = openbis_obj
         self.__dict__['type'] = type
         self.__dict__['p'] = PropertyHolder(openbis_obj, type)
-        self.__dict__['a'] = AttrHolder(openbis_obj, 'Material', type)
+        self.__dict__['a'] = AttrHolder(openbis_obj, 'material', type)
 
         if data is not None:
             self._set_data(data)