Old Mac linebreaks

[mptrsen]

Make the table importer resistant to non-UNIX line breaks:

# Read in entire file content at once
my $file_content = do { local $/; <$FILE> };

# close filehandle
close $FILE or croak "Could't close '$file': $!";

# Convert to unix-style line breaks
if ( $convert ) {
    $file_content =~ s/\r\n?/\n/g;
}

[mptrsen]

Fixed with #4993b7c