Fix: Install APCu instead of APC
Fix: Install APCu instead of APC

APC doens't work for PHP 7.x
+ add APC backward compatibility module because Doctrine Common Cache calls apc_* functions

pix-art/SecretSanta,pix-art/SecretSanta,tvlooy/SecretSanta,TomCan/SecretSanta,wimme002/SecretSanta,acrobat/SecretSanta,Intracto/SecretSanta,acrobat/SecretSanta,acrobat/SecretSanta,Intracto/SecretSanta,TomCan/SecretSanta,pix-art/SecretSanta,pix-art/SecretSanta,Intracto/SecretSanta,rvanginneken/SecretSanta,tvlooy/SecretSanta,wimme002/SecretSanta,rvanginneken/SecretSanta,wimme002/SecretSanta,wimme002/SecretSanta,TomCan/SecretSanta,rvanginneken/SecretSanta,tvlooy/SecretSanta,rvanginneken/SecretSanta,Intracto/SecretSanta,tvlooy/SecretSanta,TomCan/SecretSanta,acrobat/SecretSanta