Update README noting future PHP requirement and closure of PEAR channel
Update README noting future PHP requirement and closure of PEAR channel

kminh/mockery,tfrommen/mockery,fhinkel/mockery,5outh/mockery,Big-Shark/mockery,florianeckerstorfer/mockery,jenswiese/mockery,kminh/mockery,jenswiese/mockery,5outh/mockery,padraic/mockery,Big-Shark/mockery,yeka/mockery,TiagoMaiaL/mockery,yeka/mockery,fhinkel/mockery,tfrommen/mockery,TiagoMaiaL/mockery,florianeckerstorfer/mockery