Create minimal interface to change email notification settings

[Kris Deugau]

With the who-and-on-which-events internals of the email notice settings moved into a database table, we need an interface to manage those settings.

[Kris Deugau]

(In [422]) /trunk

checkpoint, email notice management. See #21.
Completed: display list, edit reciplist

[Kris Deugau]

(In [423]) /trunk

checkpoint, email notice management. See #21.
Completed: add new notice group.

[Kris Deugau]

(In [424]) /trunk

checkpoint, email notice management. See #21.
Completed delete notice entry.

Still need to add custom code to support legacy notify-on-SWIP.

[Kris Deugau]

(In [426]) /trunk

Tweak mailNotify call on SWIP-is-on
Note "special" notification option for SWIP-is-on
Fix add-special-notice so that the special flag content gets inserted
Complain if any of reciplist, section, and target/alloctype are missing while

adding a new notification

Fix mailNotify to actually iterate over all of the combinations it's supposed

to instead of just looking up the passed action code

Closes #21

[Kris Deugau]

(In [438]) /trunk

Fix up add-notice process to allow adding new-city and new-node failures.
(Re-) closes #21.