Merge branch 'master' into staging

* master: (39 commits)
  pythonPackages: rename dns -> dnspython
  awesome: fix LUA_PATH/LUA_CPATH to lgi [now for version 3.5]
  qt4: fix qmake on darwin and delete custom install phase
  python.buildEnv: always include the $out output
  nix-bash-completions: lazy load aware install
  borg: 1.1.1 -> 1.1.3
  nixos/programs/bash: document that /etc/bash_completion.d is obsolete
  ocamlPackages.markup: 0.7.4 -> 0.7.5
  hhvm: 3.21 -> 3.23.2
  ocamlPackages.ulex: 1.1 -> 1.2
  notmuch: 0.25.2 -> 0.25.3
  gmime3: 3.0.1 -> 3.0.5
  qt4: fix darwin install phase
  nixos/programs/bash: Let bash-completion lazy load scripts
  Revert "gmime: 3.0.1 -> 3.0.5"
  rawtherapee: delete unused files
  pythonPackages: rename dns -> dnspython
  nixpkgs: remove sqlite/kyotocabinet deps for leveldb
  tor-browser-bundle-bin: 7.0.10 -> 7.0.11
  networkmanager: remove restart after suspend from resume
  ...