patch 8.1.0117: URL in install program still points to SourceForge

Problem:    URL in install program still points to SourceForge.
Solution:   Change it to www.vim.org. (closes #3100)

src/dosinst.c

@@ -1878,7 +1878,7 @@ install_start_menu(int idx)
 	add_pathsep(shell_folder_path);
 	strcat(shell_folder_path, "Vim Online.url");
 	if (!WritePrivateProfileString("InternetShortcut", "URL",
-				     "http://vim.sf.net/", shell_folder_path))
+				    "https://www.vim.org/", shell_folder_path))
 	{
 	    printf("Creating the Vim online URL failed\n");
 	    return;

src/version.c

@@ -789,6 +789,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    117,
 /**/
     116,
 /**/