Add 'wordhistory' option

docs/CONFIG-README

@@ -296,6 +296,9 @@ topichistory        Maximum number of topics to show in 'latest topics'
 urlhistory          Maximum number of URLs to show in 'most referenced URLs'
                     (default: 5)
 
+wordhistory         Maximum number of words to show in 'Most used words'
+                    (default: 10)
+
 langfile            Filename of language file.
                     (default: lang.txt)
 

modules/Pisg.pm

@@ -169,6 +169,7 @@ sub get_default_config_settings
         activenicks2 => 30,
         topichistory => 3,
         urlhistory => 5,
+        wordhistory => 10,
         nicktracking => 0,
         charset => 'iso-8859-1',
 

modules/Pisg/HTMLGenerator.pm

@@ -1401,7 +1401,7 @@ sub _mostusedword
 
 
         my $count = 0;
-        for(my $i = 0; $count < 10; $i++) {
+        for(my $i = 0; $count < $self->{cfg}->{wordhistory}; $i++) {
             last unless $i < $#popular;
             # Skip nicks.  It's far more efficient to do this here than when
             # @popular is created.