Addition of tool to list hosts in a year

hosts_in_year.sqlite.sql: query to return all hosts contributing shows
    in a period (usually a year)

hosts_list.tpl: `TT²` template to generate an HTML list from the output
    of hosts_in_year.sqlite.sql

make_shownotes: trivial tidying

thanks_to_hosts: Bash script to simplify the generation of the HTML
    which thanks a year's hosts for their contributions

Community_News/make_shownotes

@@ -159,8 +159,11 @@ Options( \%options );
 #
 # Default help is just the USAGE section
 #
-pod2usage( -msg => "$PROG version $VERSION\n", -verbose => 0, -exitval => 1 )
-    if ( $options{'help'} );
+pod2usage(
+    -msg => "$PROG version $VERSION\n",
+    -verbose => 0,
+    -exitval => 1
+) if ( $options{'help'} );
 
 #
 # Full documentation if requested with -documentation or -man