Remove deprecated CURLOPT_BINARYTRANSFER

Merge branch 'master' of https://github.com/short-pixel-optimizer/sho…

…rtpixel-php

v1.9.1 - update the toBuffers method to return the same structure as …

…the toFiles one

Use env param for the API domain

Fix #27 Warning: preg_match(): Compilation failed: missing closing pa…

…renthesis at offset 16 on Windows 10

add the cmdShortpixelOptimize as a shortpixel command to composer.json

Fix not optimizing subfolder with status "success" after files were a…

…dded to it.

Fix error when file not yet optimized and it was checking the optimiz…

…ed size. Add logging for folder cache.

Log to file target.

Version 1.7.0 - Add AVIF support