updated core to latest 1.5/master commit
Merge branch 'master' of github.com:proximitybbdo/engine

* 'master' of github.com:proximitybbdo/engine:
  changed minify check to if(Config::get(minify_js))
  added more env specific db config
  removed general db config
  profiling on stage on true for debugging
  added ga and minify_js to envs config
  removed ga and minify_js from general config
  tabs to spaces