Bug 10511: fix message preference form glitch concerning phone notifications

Bug 10511: fix message preference form glitch concerning phone notifications

An error in the onclick for phone notices causes the "Do not notify"
checkbox to be checked when the phone checkbox is checked. Also,
checking "Do not notify" does not uncheck the phone checkbox.

Test plan:
1) Enable TalkingTechItivaPhoneNotification
2) Browse to the new patron screen ( memberentry.pl )
3) In the patron messaging preferences check the Phone checkbox
4) Not the "do not notify" checkbox is then checked
5) Uncheck the "do not notify" checkbox, and check the Email checkbox as well
6) Now check the "do not notify" checkbox, note the Phone checkbox remains checked
7) Apply this patch
8) Repeat steps 3-6, noting the odd behavior is no longer present

Signed-off-by: Srdjan <srdjan@catalyst.net.nz>
Signed-off-by: Jonathan Druart <jonathan.druart@biblibre.com>
Signed-off-by: Galen Charlton <gmc@esilibrary.com>