simplenode.reltool.config: use default sys-level mod_cond setting
simplenode.reltool.config: use default sys-level mod_cond setting

As discussed here
http://erlang.org/pipermail/erlang-questions/2012-December/071135.html
change the reltool spec to use the default sys-level mod_cond setting.

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