Fix to make sure that feature is available by default (server owners)

xterm/config

@@ -1,2 +1,2 @@
 base_port=555
-flavors=1
+noflavors=0

xterm/config.info

@@ -1,3 +1,3 @@
 base_port=Base port number for WebSockets connections,0,5
 size=Terminal width and height in characters,3,Automatic,5,,,Static (80x24)
-flavors=Enable inbuilt command prompt color customization,1,1-Yes,0-No
+noflavors=Disable inbuilt command prompt color customization,1,1-Yes,0-No

xterm/index.cgi

@@ -201,7 +201,7 @@ if ($user eq "root" && $in{'user'}) {
 
 # Terminal flavors
 my (@cmds, $term_flavors);
-if ($config{'flavors'}) {
+if (!$config{'noflavors'}) {
 	my ($cmd_lsalias, $cmd_ps1) = ("alias ls='ls --color=auto'");
 
 	# Optionally add colors to the prompt depending on the user type