Fixes https://github.com/Vizzuality/cartodb-management#2629, adds specs
Merge branch 'develop' of github.com:CartoDB/cartodb20 into develop

* 'develop' of github.com:CartoDB/cartodb20:
  cdb submodule from develop
  monospace family for the rest and liberation mono for Ubuntu in sql codemirror editor
  cartodb.js to develop branch
  back https for google maps library
  added liberation mono font to render text properly in the sql editor - fixes vizzuality/cartodb-management#1580 - cc @lbosque @lorenzoplanas @strk \o/