Added @weakify and @strongify, which greatly simplify the weak-strong memory management dance required for weak references in blocks
Added @weakify and @strongify, which greatly simplify the weak-strong memory management dance required for weak references in blocks

KBvsMJ/libextobjc,bboyesc/libextobjc,jiakai-lian/libextobjc,sunfei/libextobjc,goodheart/libextobjc,kolyuchiy/libextobjc,sandyway/libextobjc,liuruxian/libextobjc,sanojnambiar/libextobjc,WPDreamMelody/libextobjc,telly/libextobjc