rename some rna properties filename --> filepath

* filename == "foo.ext"
 * filepath == "/path/to/and/including/foo.ext"

this was alredy followed in some places not not everywhere.

release/scripts/modules/graphviz_export.py

@@ -57,7 +57,7 @@ def graph_armature(obj, path, FAKE_PARENT=True, CONSTRAINTS=True, DRIVERS=True,
     fileobject = open(path, "w")
     fw = fileobject.write
     fw(header)
-    fw('label = "%s::%s" ;' % (bpy.data.filename.split("/")[-1].split("\\")[-1], obj.name))
+    fw('label = "%s::%s" ;' % (bpy.data.filepath.split("/")[-1].split("\\")[-1], obj.name))
 
     arm = obj.data