Fixes #1263. Makes the HandlerStack more reusable (without BC) by moving the "cached" logic from __invoke() to resolve().
Fixes #1263. Makes the HandlerStack more reusable (without BC) by moving the "cached" logic from __invoke() to resolve().

ehough/guzzle,Brunty/guzzle,Tobion/guzzle,BostjanOb/guzzle,guzzle/guzzle,Tobion/guzzle,dshafik/guzzle,BostjanOb/guzzle,paveljanda/guzzle,mortenhauberg/guzzle,ehough/guzzle,kkopachev/guzzle,guzzle/guzzle,dshafik/guzzle,michabbb-backup/guzzle,paveljanda/guzzle,Brunty/guzzle,thinsoldier/guzzle,mortenhauberg/guzzle,thinsoldier/guzzle,wherefortravel/guzzle,michabbb-backup/guzzle,kkopachev/guzzle,wherefortravel/guzzle