LP#1189556: Fix typo in URL_VERIFY permission description

The description for the URL_VERIFY permission contained a typo,
fixed here.

Added an upgrade sql to update the text.

Signed-off-by: Chris Sharp <csharp@georgialibraries.org>
Signed-off-by: Pasi Kallinen <pasi.kallinen@pttk.fi>
Signed-off-by: Ben Shum <bshum@biblio.org>
LP#1189556: stamping upgrade script for URL_VERIFY description typo fix

Signed-off-by: Ben Shum <bshum@biblio.org>