Removes PSAD from server setup

It was just destroying our disk space
Merge branch 'master' of github.com:unepwcmc/ProtectedPlanet

* 'master' of github.com:unepwcmc/ProtectedPlanet:
  make mocha complain about stubbing non-existent methods
  block generation if an empty array is given to generator
  make links work on stats pages
  add creation of region downloads
  CartoDB importer now imports points
  Refactors Ogr::Split to return Shapefile instances
  Refactors Ogr::Split to not require having an instance created first