fix HEAD unzip bug
fix HEAD unzip bug

zsh2938/superagent,RubenVerborgh/superagent,h1bomb/superagent,visionmedia/superagent,KingMario/superagent,aaroncrows/superagent,jarvisaoieong/superagent,kmalakoff/superagent-ls,deltreey/superagent,stasha/superagent,eligolding/superagent,andyburke/superagent,KuroGuo/suberagent,geminiyellow/superagent,yussan/superagent,wushuyi/superagent,mvanlonden/superagent-webpack-client,ccapndave/superagent,targos/superagent,nemisj/superagent,killerlayup/superagent,craigspaeth/superagent,stanzi83/superagent,andyburke/superagent,yussan/superagent,visionmedia/superagent,deltreey/superagent,craigspaeth/superagent,visionmedia/superagent,brotchie/superagent,sebastianvera/superagent,wushuyi/superagent,modulexcite/superagent,fredigato/superagent,mvanlonden/superagent-webpack-client,brainbytes/superagent,kmalakoff/superagent-ls,simonvizzini/superagent,yeatszhang/superagent,KuroGuo/suberagent,brotchie/superagent,drinks/superagent,zsh2938/superagent,brainbytes/superagent,eligolding/superagent,stasha/superagent,puterakahfi/superagent,nemisj/superagent,classdojo/superagent,ccapndave/superagent,KingMario/superagent,thejameskyle/superagent,ertrzyiks/superagent,puterakahfi/superagent,geminiyellow/superagent,stanzi83/superagent,yeatszhang/superagent,h1bomb/superagent,soyuka/superagent,reinaldo13/superagent,focusaurus/superagent,philipshurpik/superagent,killerlayup/superagent,jarvisaoieong/superagent,simonvizzini/superagent,sebastianvera/superagent,thejameskyle/superagent,bevacqua/superagent,classdojo/superagent,RubenVerborgh/superagent,drinks/superagent,philipshurpik/superagent,targos/superagent,reinaldo13/superagent,sutoiku/superagent,soyuka/superagent,alinz/superagent,modulexcite/superagent,sutoiku/superagent,fredigato/superagent,focusaurus/superagent,noikiy/suberagent,noikiy/suberagent,alinz/superagent,ertrzyiks/superagent,aaroncrows/superagent