Moved end callback from response event handler
Moved end callback from response event handler

Now calling that manually so that the end callback handler doesn't
superseed cookie saving logic in `.on('response')`.

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