Update .travis.yml: Add chat bot notification
Update .travis.yml: Add chat bot notification

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