autoload -> Autoload as it is in WMA

Author: rocky

mathics/autoload/rules/Bessel.m mathics/Autoload/rules/Bessel.mmathics/autoload/rules/Bessel.m renamed to mathics/Autoload/rules/Bessel.m

@@ -634,7 +634,7 @@ class FileNames(Builtin):
       <dd>Look for files up to the level $n$.
     </dl>
 
-    >> SetDirectory[$InstallationDirectory <> "/autoload"];
+    >> SetDirectory[$InstallationDirectory <> "/Autoload"];
     >> FileNames["*.m", "formats"]//Length
      = ...
     >> FileNames["*.m", "formats", 3]//Length

mathics/autoload/rules/Element.m mathics/Autoload/rules/Element.mmathics/autoload/rules/Element.m renamed to mathics/Autoload/rules/Element.m

@@ -1126,5 +1126,5 @@ def load_builtin_definitions(
             with open(builtin_filename, "wb") as builtin_file:
                 pickle.dump(self.builtin, builtin_file, -1)
 
-    autoload_files(self, ROOT_DIR, "autoload")
+    autoload_files(self, ROOT_DIR, "Autoload")
     autoload_files(self, osp.join(ROOT_DIR, "SystemFiles"), "Formats")

mathics/autoload/rules/Limit.m mathics/Autoload/rules/Limit.mmathics/autoload/rules/Limit.m renamed to mathics/Autoload/rules/Limit.m

@@ -86,7 +86,7 @@ def load_default_settings_files(
     """
     root_dir = osp.realpath(osp.dirname(__file__))
 
-    autoload_files(definitions, root_dir, "autoload", False)
+    autoload_files(definitions, root_dir, "Autoload", False)
     if load_cli_settings:
         autoload_files(definitions, root_dir, "autoload-cli", False)