Rescue from mkdir_p errors in configure_gem_home_and_path
Rescue from mkdir_p errors in configure_gem_home_and_path

The mkdir_p was originally added for JRuby (see #602). As of JRuby
1.6, some paths will actually raise an error, so we need to rescue
and ignore those.

EthanK28/bundler,jasonkarns/bundler,EasonYi/bundler,gregkare/bundler,mpapis/bundler,suhastech/bundler,AiyionPrime/bundler,davydovanton/bundler,frsyuki/bundler,Eric-Guo/bundler,carpodaster/bundler,smlance/bundler,asutoshpalai/bundler,mpapis/bundler,ligi/bundler,neslom/bundler,danimashu/bundler,mattbrictson/bundler-1,robinboening/bundler,h4ck3rm1k3/bundler,cowboyd/bundler,zhangkuaiji/bundler,roseweixel/bundler,smlance/bundler,nju520/bundler,haonature888/bundler,frsyuki/bundler,jingweno/bundler,Teino1978-Corp/Teino1978-Corp-bundler,tgxworld/bundler,carpodaster/bundler,christer155/bundler,robinboening/bundler,r7kamura/bundler,philnash/bundler,gentoo/bundler,agis-/bundler,AiyionPrime/bundler,elovelan/bundler,anil826/bundler,TimMoore/bundler,CorainChicago/bundler,bundler/bundler,h4ck3rm1k3/bundler,ipmobiletech/bundler,mattbrictson/bundler-1,Wirachmat/bundler,cdwort/bundler,neslom/bundler,twcctz500000/bundler,lmtim/bundler,wenderjean/bundler,byroot/bundler,wenderjean/bundler,asutoshpalai/bundler,pivotal-cf-experimental/bundler,christer155/bundler,anil826/bundler,danimashu/bundler,mvz/bundler,eagletmt/bundler,Elffers/bundler,chulkilee/bundler,vemmaverve/bundler,mdorrance/bundler,sideci-sample/sideci-sample-bundler,ximus/bundler,masarakki/bundler,cstrahan/bundler,Teino1978-Corp/Teino1978-Corp-bundler,Elffers/bundler,seanlinsley/bundler,kohgpat/bundler,roseweixel/bundler,philnash/bundler,PG-kura/bundler,JuanitoFatas/bundler,ducthanh/bundler,ligi/bundler,RochesterinNYC/bundler,e2/bundler,patvice/bundler,haonature/bundler,steved/bundler,seanlinsley/bundler,zhangkuaiji/bundler,mtscout6/bundler,joshsoftware/bundler,ngpestelos/bundler,EasonYi/bundler,pivotal-cf-experimental/bundler,nju520/bundler,rkh/bundler,haonaturel/bundler,simplybusiness/bundler,dilumnavanjana/bundler,bundler/bundler,bronzdoc/bundler,tgxworld/bundler,joshsoftware/bundler,TimMoore/bundler,cstrahan/bundler,dilumnavanjana/bundler,jingweno/bundler,agis-/bundler,suhastech/bundler,lgierth/bundler,asymmetric/bundler,masarakki/bundler,kohgpat/bundler,schaary/bundler,cdwort/bundler,pjump/bundler,Eric-Guo/bundler,1337807/bundler,chef/bundler,PG-kura/bundler,pjump/bundler,bronzdoc/bundler,patvice/bundler,mdorrance/bundler,jaym/bundler,haocafes/bundler,RochesterinNYC/bundler,lmtim/bundler,jasonkarns/bundler,sideci-sample/sideci-sample-bundler,chef/bundler,ngpestelos/bundler,asymmetric/bundler,gregkare/bundler,steved/bundler,CorainChicago/bundler,davydovanton/bundler,EthanK28/bundler,jaym/bundler,ipmobiletech/bundler,schaary/bundler,byroot/bundler,Wirachmat/bundler,ximus/bundler,simplybusiness/bundler,mvz/bundler,chulkilee/bundler,elovelan/bundler