Allow regionsets to be named in a settings.py file

test/data/settings/settings_test_1.py

@@ -1,4 +1,6 @@
-worldpath="test/data/settings/test_world"
+world['test'] = "test/data/settings/test_world"
+worldname = 'test'
+
 rendermode = "normal"
 
 render["world"] = { 

test/data/settings/settings_test_bgcolor.py

@@ -1,6 +1,8 @@
 bgcolor="#000000"
 
+world['test'] = "test/data/settings/test_world"
+
 render["world"] = { 
-    "worldpath": "test/data/settings/test_world", 
+    "worldname": "test", 
     "bgcolor":"ffff"
 }

test/data/settings/settings_test_rendermode.py

@@ -1,5 +1,7 @@
+world['test'] = "test/data/settings/test_world"
+
 render["world"] = { 
-    "worldpath": "test/data/settings/test_world", 
+    "worldname": "test", 
     "rendermode": "bad_rendermode",
     "northdirection": ["upper-left"],
 }