Add support for installing to a target directory as alternative to Erlang base dir
Add support for installing to a target directory as alternative to Erlang base dir

platinumthinker/rebar,K2InformaticsGmbH/rebar,processone/rebar3,blt/rebar3,scatterbrain/rebar,dcarastan/rebar,blt/rebar3,K2InformaticsGmbH/rebar,djnym/rebar3,scatterbrain/rebar,matwey/rebar,norton/rebar,sile/rebar3,RubberCthulhu/rebar,CMoH/rebar,lpgauth/rebar,tsloughter/rebar3,heroku/rebar,matwey/rebar,K2InformaticsGmbH/rebar,paulo-ferraz-oliveira/rebar,deadok22/rebar,SiDen/rebar,walrusVision/rebar3,norton/rebar3,oubiwann/rebar,platinumthinker/rebar,heroku/rebar,fabiankrol/rebar3,oubiwann/rebar,matwey/rebar,rebar/rebar3,SiDen/rebar,cloudant/couchdb-rebar,shkumagai/rebar,lpgauth/rebar,bsmr-erlang/rebar,K2InformaticsGmbH/rebar,GabrielNicolasAvellaneda/rebar,zugolosian/rebar3,csyangchen/rebar,norton/rebar,SiDen/rebar,cloudant/couchdb-rebar,scatterbrain/rebar,K2InformaticsGmbH/rebar,jbalint/rebar3,matwey/rebar,jacktang/rebar,kellymclaughlin/rebar3,lrascao/rebar,beni55/rebar,linearregression/rebar3,project-fifo/rebar3,fishcakez/rebar3,shkumagai/rebar,lrascao/rebar,jbalint/rebar3,dcarastan/rebar,macintux/rebar,rebar/rebar,benoitc/rebar3,choptastic/rebar,macintux/rebar,rebar/rebar,csyangchen/rebar,evnix/rebar,syl20bnr/rebar,apache/couchdb-rebar,project-fifo/rebar3,surik/rebar3,paulo-ferraz-oliveira/rebar,apache/couchdb-rebar,GabrielNicolasAvellaneda/rebar,thomasbhatia/rebar,lrascao/rebar,walrusVision/rebar3,apache/couchdb-rebar,macintux/rebar,RubberCthulhu/rebar,beni55/rebar-1,rebar/rebar3,choptastic/rebar,fauxsoup/rebar3,norton/rebar,deadok22/rebar,basho/rebar,shkumagai/rebar,erlang/rebar3,ferd/rebar3,lrascao/rebar,beni55/rebar,rebar/rebar,surik/rebar3,syl20bnr/rebar,zugolosian/rebar3,lpgauth/rebar,benoitc/rebar3,saleyn/rebar3,platinumthinker/rebar,bsmr-erlang/rebar,vladdu/rebar3,matwey/rebar,wcy123/rebar,evnix/rebar,norton/rebar,jacktang/rebar,fabiankrol/rebar3,wcy123/rebar,CMoH/rebar,bsmr-erlang/rebar,lrascao/rebar3,processone/rebar3,lrascao/rebar,thomasbhatia/rebar,thomasbhatia/rebar,linearregression/rebar3,oubiwann/rebar,cloudant/couchdb-rebar,jacktang/rebar,GabrielNicolasAvellaneda/rebar,syl20bnr/rebar,evnix/rebar,bsmr-erlang/rebar,paulo-ferraz-oliveira/rebar,choptastic/rebar,sile/rebar3,CMoH/rebar,dcarastan/rebar,basho/rebar,beni55/rebar-1,beni55/rebar,fauxsoup/rebar3,csyangchen/rebar