Bug 10076 - Add Bcc syspref for ClaimAcquisition and ClaimIssues

Bug 10076 - Add Bcc syspref for ClaimAcquisition and ClaimIssues

There is already a syspref called "OverdueNoticeBcc" for sending Bcc
copies of mails sent for overdues and other notices. This patch add a
new syspref ClaimsBccCopy to bcc the claimacquisition and clamissues
alerts.

Changed the wording of the system preference to:

[Send|Don't send] blind copy (BCC) to logged in user when sending
serial or acquisitions claims notices.

Signed-off-by: Frédéric Demians <f.demians@tamil.fr>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Brendan Gallagher brendan@bywatersolutions.com