gitweb: Style all tables using CSS

Remove all cellspacing="0" attributes from tables in gitweb,
replacing it by CSS rule.  Add CSS classes for all tables.

While at it, change class(es) of table for commit message and commit
authorship search from "grep" to "commit_search"; similarly,
"grep_search" class is now used for table with results of grep (files)
search.

Signed-off-by: Jakub Narebski <jnareb@gmail.com>

gitweb/gitweb.css

@@ -170,14 +170,10 @@ a.text:hover {
 
 table {
 	padding: 8px 4px;
-}
-
-table.project_list {
 	border-spacing: 0;
 }
 
 table.diff_tree {
-	border-spacing: 0;
 	font-family: monospace;
 }
 

gitweb/gitweb.perl

@@ -3544,7 +3544,7 @@ sub git_shortlog_body {
 	$from = 0 unless defined $from;
 	$to = $#{$commitlist} if (!defined $to || $#{$commitlist} < $to);
 
-	print "<table class=\"shortlog\" cellspacing=\"0\">\n";
+	print "<table class=\"shortlog\">\n";
 	my $alternate = 1;
 	for (my $i = $from; $i <= $to; $i++) {
 		my %co = %{$commitlist->[$i]};
@@ -3590,7 +3590,7 @@ sub git_history_body {
 	$from = 0 unless defined $from;
 	$to = $#{$commitlist} unless (defined $to && $to <= $#{$commitlist});
 
-	print "<table class=\"history\" cellspacing=\"0\">\n";
+	print "<table class=\"history\">\n";
 	my $alternate = 1;
 	for (my $i = $from; $i <= $to; $i++) {
 		my %co = %{$commitlist->[$i]};
@@ -3650,7 +3650,7 @@ sub git_tags_body {
 	$from = 0 unless defined $from;
 	$to = $#{$taglist} if (!defined $to || $#{$taglist} < $to);
 
-	print "<table class=\"tags\" cellspacing=\"0\">\n";
+	print "<table class=\"tags\">\n";
 	my $alternate = 1;
 	for (my $i = $from; $i <= $to; $i++) {
 		my $entry = $taglist->[$i];
@@ -3713,7 +3713,7 @@ sub git_heads_body {
 	$from = 0 unless defined $from;
 	$to = $#{$headlist} if (!defined $to || $#{$headlist} < $to);
 
-	print "<table class=\"heads\" cellspacing=\"0\">\n";
+	print "<table class=\"heads\">\n";
 	my $alternate = 1;
 	for (my $i = $from; $i <= $to; $i++) {
 		my $entry = $headlist->[$i];
@@ -3750,7 +3750,7 @@ sub git_search_grep_body {
 	$from = 0 unless defined $from;
 	$to = $#{$commitlist} if (!defined $to || $#{$commitlist} < $to);
 
-	print "<table class=\"grep\" cellspacing=\"0\">\n";
+	print "<table class=\"commit_search\">\n";
 	my $alternate = 1;
 	for (my $i = $from; $i <= $to; $i++) {
 		my %co = %{$commitlist->[$i]};
@@ -3891,7 +3891,7 @@ sub git_summary {
 	git_print_page_nav('summary','', $head);
 
 	print "<div class=\"title\">&nbsp;</div>\n";
-	print "<table cellspacing=\"0\">\n" .
+	print "<table class=\"projects_list\">\n" .
 	      "<tr><td>description</td><td>" . esc_html($descr) . "</td></tr>\n" .
 	      "<tr><td>owner</td><td>" . esc_html($owner) . "</td></tr>\n";
 	if (defined $cd{'rfc2822'}) {
@@ -3965,7 +3965,7 @@ sub git_tag {
 
 	git_print_header_div('commit', esc_html($tag{'name'}), $hash);
 	print "<div class=\"title_text\">\n" .
-	      "<table cellspacing=\"0\">\n" .
+	      "<table class=\"object_header\">\n" .
 	      "<tr>\n" .
 	      "<td>object</td>\n" .
 	      "<td>" . $cgi->a({-class => "list", -href => href(action=>$tag{'type'}, hash=>$tag{'object'})},
@@ -4405,7 +4405,7 @@ sub git_tree {
 	}
 	git_print_page_path($file_name, 'tree', $hash_base);
 	print "<div class=\"page_body\">\n";
-	print "<table cellspacing=\"0\">\n";
+	print "<table class=\"tree\">\n";
 	my $alternate = 1;
 	# '..' (top directory) link if possible
 	if (defined $hash_base &&
@@ -4627,7 +4627,7 @@ sub git_commit {
 		git_print_header_div('tree', esc_html($co{'title'}) . $ref, $co{'tree'}, $hash);
 	}
 	print "<div class=\"title_text\">\n" .
-	      "<table cellspacing=\"0\">\n";
+	      "<table class=\"object_header\">\n";
 	print "<tr><td>author</td><td>" . esc_html($co{'author'}) . "</td></tr>\n".
 	      "<tr>" .
 	      "<td></td><td> $ad{'rfc2822'}";
@@ -5226,7 +5226,7 @@ sub git_search {
 		git_print_page_nav('','', $hash,$co{'tree'},$hash);
 		git_print_header_div('commit', esc_html($co{'title'}), $hash);
 
-		print "<table cellspacing=\"0\">\n";
+		print "<table class=\"pickaxe search\">\n";
 		my $alternate = 1;
 		$/ = "\n";
 		my $git_command = git_cmd_str();
@@ -5293,7 +5293,7 @@ sub git_search {
 		git_print_page_nav('','', $hash,$co{'tree'},$hash);
 		git_print_header_div('commit', esc_html($co{'title'}), $hash);
 
-		print "<table cellspacing=\"0\">\n";
+		print "<table class=\"grep_search\">\n";
 		my $alternate = 1;
 		my $matches = 0;
 		$/ = "\n";