Adding support for oauth_callback parameter.
Adding support for oauth_callback parameter.

ehough/guzzle,kkopachev/guzzle,kkopachev/guzzle,guzzle/guzzle3,sulfo/guzzle,michabbb-backup/guzzle,barryvdh/guzzle3,atrauzzi/guzzle,EdgarPE/guzzle,phlogisticfugu/guzzle,chengky/guzzle,lahmizzar/guzzle,wulftone/guzzle,rsauvatinet/guzzle3,duyhuynhngoc/guzzle,stea4lth/guzzle,SharpSpring/guzzle3,barryvdh/guzzle3,stefanruijsenaars/guzzle,checat/guzzle,guzzle/guzzle,roundpartner/guzzle3,hussainweb/guzzle,staylor/guzzle,Tobion/guzzle,jabong/guzzle3,michabbb-backup/guzzle,javierTerry/guzzle,checat/guzzle,roundpartner/guzzle3,nazo/guzzle,nazo/guzzle,hussainweb/guzzle,ryanhughes/guzzle,jeskew/guzzle,stea4lth/guzzle,legovaer/guzzle3,wherefortravel/guzzle,rajaehtesham/guzzle,atrauzzi/guzzle,Tony133/guzzle,videni/guzzle,justincy/guzzle,EdgarPE/guzzle,grokify/guzzle,sulfo/guzzle,BostjanOb/guzzle,vrkansagara/guzzle,dshafik/guzzle,grokify/guzzle,kminh/guzzle3,Rinat-wc/guzzle,mustafavelioglu/guzzle,thinsoldier/guzzle,vrkansagara/guzzle,mortenhauberg/guzzle,Tobion/guzzle,mrm/guzzle,mortenhauberg/guzzle,thinsoldier/guzzle,jeskew/guzzle,WebSeed/guzzle,Naktibalda/guzzle,duyhuynhngoc/guzzle,Brunty/guzzle,lahmizzar/guzzle,WebSeed/guzzle,staylor/guzzle,wulftone/guzzle,ehough/guzzle,rajaehtesham/guzzle,mikicaivosevic/guzzle,paveljanda/guzzle,rsauvatinet/guzzle3,Tony133/guzzle,mustafavelioglu/guzzle,phlogisticfugu/guzzle,videni/guzzle,Briareos/guzzle,sahat/guzzle,BostjanOb/guzzle,javierTerry/guzzle,dshafik/guzzle,SharpSpring/guzzle3,justincy/guzzle,mubassirhayat/guzzle,Naktibalda/guzzle,legovaer/guzzle3,jabong/guzzle3,Brunty/guzzle,mrm/guzzle,dawehner/guzzle,mikicaivosevic/guzzle,dawehner/guzzle,guzzle/guzzle3,dawehner/guzzle,ryanhughes/guzzle,Briareos/guzzle,Rinat-wc/guzzle,guzzle/guzzle,chengky/guzzle,kminh/guzzle3,cenxun/guzzle,wherefortravel/guzzle,stefanruijsenaars/guzzle,paveljanda/guzzle,cenxun/guzzle