Bug 7007: 490 series statements should appear when not traced

Bug 7007: 490 series statements should appear when not traced

Although the MARC21 standard requires libraries to set the first indicator to
'0' when a 490 field is untraced, many libraries leave it blank. Previously,
this resulted in a blank line with the label "Series:" but no actual series
information. This patch fixes that by showing untraced series headings for
490s whenever the first indicator is not set to '1'

Signed-off-by: Katrin Fischer <Katrin.Fischer.83@web.de>
Checked that series shows correctly when first indicator is 0, 1 or not set.

Signed-off-by: Ian Walls <ian.walls@bywatersolutions.com>
Signed-off-by: Chris Cormack <chrisc@catalyst.net.nz>