[ticket/17068] ALLOW_CDN_EXPLAIN: Refines and expands the description
Concerns the description of the switch "APC > GENERAL > Load settings > Allow
usage of third party content delivery networks:".
* The text gives the impression that the choice of the switch state is a
personal preference of individual administrators. In fact, this is a matter of
local privacy laws.
* Missing mention that the switch also controls the integration of Font
Awesome, part of phpBB's GUI and extensions.
