Add quiet option to site-generator

Suppress progress information while generating pages.

site-generator

@@ -9,7 +9,8 @@
 	site-generator [OPTION]... PAGE|PAGE=<comma separated list of ids>...
 
 	-p, --preview  print generated pages to standard out
-	-v, --verbose  use verbose mode
+	-q, --quiet    suppress progress information while generating pages
+	-v, --verbose  print extended progress information while generating pages
 	--help         print this help message
 
 	Where I<PAGE> is a file name of a web page 
@@ -92,13 +93,19 @@ sub main {
 	# Argument parsing
 	my $preview;
 	my $verbose;
+	my $quiet;
 	GetOptions(
 		'preview' => \$preview,
 		'verbose' => \$verbose,
+		'quiet'   => \$quiet,
 	) or pod2usage(1);
 	pod2usage(1) unless @ARGV;
 	my (@page_args) = @ARGV;
 
+	if ($quiet) {
+		$verbose = 'quiet';
+	};
+
 	# Set flag indicating whether or not to generate all pages.
 	# The flag is set to true if the special argument ALL is 
 	# passed into the generator
@@ -186,8 +193,10 @@ sub generate_page  {
 sub verbose {
 	my ($verbose, $message) = @_;
 	if ($verbose) {
+		if ($verbose ne 'quiet') { 
 			print STDOUT "$message\n";
 		}
+	}
 	else {
 		STDOUT->autoflush(1);
 		print STDOUT ".";