Bigger fiber stack by default
Bigger fiber stack by default

Test Plan: mcrouter unit tests, run mcrouter and check __mcrouter__.options

Reviewed By: @spalamarchuk

Differential Revision: D1969507
zhlong73/mcrouter,zhlong73/mcrouter,yqzhang/mcrouter,easyfmxu/mcrouter,apinski-cavium/mcrouter,reddit/mcrouter,easyfmxu/mcrouter,is00hcw/mcrouter,synecdoche/mcrouter,nvaller/mcrouter,synecdoche/mcrouter,facebook/mcrouter,tempbottle/mcrouter,glensc/mcrouter,nvaller/mcrouter,zhlong73/mcrouter,tempbottle/mcrouter,reddit/mcrouter,leitao/mcrouter,nvaller/mcrouter,is00hcw/mcrouter,leitao/mcrouter,facebook/mcrouter,is00hcw/mcrouter,facebook/mcrouter,easyfmxu/mcrouter,zhlong73/mcrouter,facebook/mcrouter,tempbottle/mcrouter,glensc/mcrouter,reddit/mcrouter,reddit/mcrouter,is00hcw/mcrouter,tempbottle/mcrouter,easyfmxu/mcrouter,leitao/mcrouter,evertrue/mcrouter,yqzhang/mcrouter,glensc/mcrouter,apinski-cavium/mcrouter,apinski-cavium/mcrouter,evertrue/mcrouter,apinski-cavium/mcrouter,evertrue/mcrouter,yqzhang/mcrouter,evertrue/mcrouter,glensc/mcrouter,synecdoche/mcrouter,synecdoche/mcrouter,nvaller/mcrouter,leitao/mcrouter,yqzhang/mcrouter