Upgrade to HttpClient 4.2.
Upgrade to HttpClient 4.2.

infusionsoft/yammer-metrics,rexren/metrics,mtakaki/metrics,ohr/metrics,signalfx/metrics,infusionsoft/yammer-metrics,mspiegel/metrics,jasw/metrics,dropwizard/metrics,ChetnaChaudhari/metrics,dropwizard/metrics,timezra/metrics,gburton1/metrics,wickedshimmy/metrics-scala,egymgmbh/metrics,randomstatistic/metrics,ind9/metrics,unitsofmeasurement/metrics,mt0803/metrics,chenxianghua2014/metrics,dropwizard/metrics,tempredirect/metrics,mnuessler/metrics,maciej/metrics-scala,Banno/metrics,slachiewicz/metrics,wfxiang08/metrics,bentatham/metrics,fcrepo4-archive/metrics,mattnelson/metrics,fcrepo4-archive/metrics,scullxbones/metrics-scala,valery1707/dropwizard-metrics,jplock/metrics,kevintvh/metrics,cirrus-dev/metrics,AltitudeDigital/metrics,slovdahl/metrics,thelastpickle/metrics,gburton1/metrics,mveitas/metrics,erikvanoosten/metrics-scala,mveitas/metrics