BackupBuddy 9.1.16

Housekeeping now cleans up old fileoptions lock files. Helps address problems loading backup page when large numbers of old locks exist.
Fixed .maintenance file contents not matching expected importbuddy.php generated version resulting in file hanging around. - Glenn Ansley
Removed S3 (v2 & v3) acceleration endpoints as they are invalid.
ENHANCEMENT:
Added S3 (v3) acceleration option.
Misc minor fixes.
S3 (v3) settings tooltrip wording improvements.
Major release of Quick Release versions 7.2.1.0-7.2.1.8.
Stash Live robustness improvements.

-Added additional logging when clearing Live transient due to expired token.
-Added transient clearing for expired token for S32 destination.

-Fixed undefined custom_root during DAT file rendering.
-Added additional escaping into bruteforce_table() for WHERE portion of statement to avoid SQL syntax error if criteria includes quote.