postimp_navi script fails with --gwclump flag because of inconsistent current working directory

[beeemT]

When executing the postimp_navi script with the --gwclump flag here

ricopili/rp_bin/postimp_navi

Lines 4579 to 4580 in 757fb9d

	if ($gwclump) {
	chdir "$distdir";

the current working directory is changed to $distdir.
However the $numbers_script is then later executed in the $distdir as it does not change to a different directory itself.

ricopili/rp_bin/postimp_navi

Lines 4635 to 4648 in 757fb9d

	my $numbers_file = "basic.$outname.num.xls";
	unless (-e "$distdir/$numbers_file") {
	my $sys = "$numbers_script basic.$outname $daner_all @daner_single";
	# print "####################################### DEBUG ###############\n";
	# print "$sys\n";
	# print "$numbers_file\n";
	# print "####################################### DEBUG ###############\n";
	# sleep (4);
	&mysystem ($sys);
	&mysystem ("cp $numbers_file $distdir");
	}

This is a problem because the $numbers_script (more specifically the arguments as these are paths to files) expect to still be in $reportdir. This makes the $numbers_script fail because it cannot find the files it was given as arguments.
I propose always executing chdir "$reportdir"; like this:
`my $numbers_file = "basic.$outname.num.xls";

unless (-e "$distdir/$numbers_file") {

chdir "$reportdir";

my $sys = "$numbers_script basic.$outname $daner_all @daner_single\n";`