E621 Batch Reverse Search Versions Save

• Removed php-wfio extension support
• Bumped PHP version requirement to 7.2 (will still work with older versions most likely but they are no longer supported)

• Force memory limit to be set to 1GB

• Prevent re-running md5 checks after batch md5 search is done

• Optimization and small changes to MD5 search prefetch functionality

• Prefetch all MD5 searches before doing anything else to speed up everything, uses batch syntax in e621's API

• Updated run scripts to ignore system's php.ini
• No temporary files are created when using conversion or php_wfio extension, everything happens in memory now

• e621 searches now correctly return "no images found" reply

• Add 3-second cooldown for e621's iqdb search when "429 - Too Many Requests" is returned

(Also MD5 check is affected - but only 1-second delay was added)

• e621's IQDB search is now enabled, authentication is required - check updated configuration file

Currently e621's API returns "An unexpected error occurred." error when no results are found.

• Removed support for 'iqdb.harry.lu' service as it's discontinued now
• Added initial support for 'e621.net/iqdb_queries' but it is disabled as it's not fully working - issues on e621's side?
• Config file updated with new comment for 'USE_MULTI_SEARCH' variable

'Saucenao.com' is now the only service used currently until e621 fix the issue with their iqdb. 'e621.net/iqdb_queries' will show an error with each search - you can ignore it.