Ticket #2725 - add StatusNet Mobile & platform variants to default notice sources...

Ticket #2725 - add StatusNet Mobile & platform variants to default notice sources lists.

To add just these to an existing table:

INSERT INTO notice_source
    (code, name, url, created)
VALUES
    ('StatusNet Mobile', 'StatusNet Mobile', 'http://status.net/mobile', now()),
    ('StatusNet iPhone', 'iPhone', 'http://status.net/iphone', now()),
    ('StatusNet Android', 'Android', 'http://status.net/android', now()),
    ('StatusNet Blackberry', 'Blackberry', 'http://status.net/blackberry', now());