Add Ubuntu instructions to Postgres setup docs
Add Ubuntu instructions to Postgres setup docs

Fixes bug 984436

cliqz/socorro,pcabido/socorro,yglazko/socorro,lonnen/socorro,Tchanders/socorro,Tchanders/socorro,linearregression/socorro,mozilla/socorro,Serg09/socorro,spthaolt/socorro,twobraids/socorro,Serg09/socorro,Tchanders/socorro,m8ttyB/socorro,mozilla/socorro,luser/socorro,adngdb/socorro,yglazko/socorro,mozilla/socorro,m8ttyB/socorro,twobraids/socorro,cliqz/socorro,spthaolt/socorro,rhelmer/socorro,luser/socorro,Tayamarn/socorro,adngdb/socorro,spthaolt/socorro,KaiRo-at/socorro,cliqz/socorro,Serg09/socorro,m8ttyB/socorro,Tchanders/socorro,pcabido/socorro,Tayamarn/socorro,luser/socorro,adngdb/socorro,Tayamarn/socorro,rhelmer/socorro,rhelmer/socorro,m8ttyB/socorro,yglazko/socorro,luser/socorro,cliqz/socorro,adngdb/socorro,AdrianGaudebert/socorro,Tayamarn/socorro,AdrianGaudebert/socorro,luser/socorro,lonnen/socorro,rhelmer/socorro,Serg09/socorro,Tayamarn/socorro,linearregression/socorro,AdrianGaudebert/socorro,AdrianGaudebert/socorro,linearregression/socorro,linearregression/socorro,pcabido/socorro,KaiRo-at/socorro,spthaolt/socorro,Serg09/socorro,yglazko/socorro,Serg09/socorro,twobraids/socorro,linearregression/socorro,AdrianGaudebert/socorro,cliqz/socorro,lonnen/socorro,AdrianGaudebert/socorro,m8ttyB/socorro,rhelmer/socorro,luser/socorro,KaiRo-at/socorro,yglazko/socorro,pcabido/socorro,yglazko/socorro,cliqz/socorro,adngdb/socorro,twobraids/socorro,spthaolt/socorro,adngdb/socorro,linearregression/socorro,Tchanders/socorro,pcabido/socorro,mozilla/socorro,rhelmer/socorro,KaiRo-at/socorro,KaiRo-at/socorro,pcabido/socorro,twobraids/socorro,spthaolt/socorro,KaiRo-at/socorro,mozilla/socorro,Tchanders/socorro,mozilla/socorro,twobraids/socorro,lonnen/socorro,Tayamarn/socorro,m8ttyB/socorro