Change from tcp to unix socket for communication b/w php-fpm & nginx

Close #35 (closed)

requested review from @kosamara

added 8 commits

• 840574f1...55046409 - 7 commits from branch master
• d1734dd6 - Change from tcp to unix socket for communication b/w php-fpm & nginx

Compare with previous version

causes #38 (closed)

enabled an automatic merge when the pipeline for d1734dd6 succeeds

mentioned in commit 5e25a1aa

merged