backport of 439eb8de commit

> remove script/ directory and move it's content to extra/

doc/www-data.in/CMakeLists.txt

 add_custom_target(www-data ALL
-    COMMAND ${PROJECT_SOURCE_DIR}/scripts/static.py
+    COMMAND ${PROJECT_SOURCE_DIR}/extra/static.py
             --source-path ${PROJECT_SOURCE_DIR}/doc/www-data.in
             --output-path ${PROJECT_BINARY_DIR}/doc/www-data)

scripts/trace.pl

-#!/usr/bin/perl -s
-
-use strict;
-use warnings;
-use IPC::Open2 qw/open2/;
-
-our ($exe);
-die "$0: no valid -exe given" unless -f $exe;
-
-our($out, $in);
-my $addr2line_pid = open2($in, $out, qw/addr2line -f -e/, $exe) or die "can't spawn addr2line: $!";
-
-sub addr_to_name {
-    my ($f) = @_;
-
-    print $out "$f\n";
-    my $name = <$in>;
-    my $junk = <$in>;
-
-    chomp $name;
-    return $name;
-}
-
-while (<>) {
-    chomp;
-    next unless /(.*)(E|X)(0x\w+)/;
-
-    my $f = addr_to_name($3);
-
-    print "$1$2 $f\n";
-}