runs composer as the vagrant user, and fixes the ownership of the composer cache folder
runs composer as the vagrant user, and fixes the ownership of the composer cache folder

clreed87/VVV,DrewAPicture/varying-vagrant-vagrants,clreed87/VVV,Varying-Vagrant-Vagrants/VVV,saucal/VVV,speartail/VVV,saucal/VVV,saucal/VVV,Varying-Vagrant-Vagrants/VVV,trepmal/varying-vagrant-vagrants,trepmal/varying-vagrant-vagrants,Varying-Vagrant-Vagrants/VVV,DrewAPicture/varying-vagrant-vagrants,speartail/VVV