Merge branch 'master' of https://github.com/bbatsov/prelude

* 'master' of https://github.com/bbatsov/prelude: (58 commits)
  Remove custom erc notifications code
  Update prelude-packages.el
  Update README.md
  Use new melpa.org address
  Improve ocaml module documentation
  Have tuareg mode set the compile command
  Fix TOC
  fix electric-layout-post-self-insert-function autoload
  Added .kv to auto install list
  Custom theme via prelude-theme variable
  exec-path-from-shell-copy-env PYTHONPATH
  Enable electric-layout-mode only with python-mode
  In helm-everywhere, bind "C-x C-m" to helm-M-x
  Add json-mode
  js2-mode is awesome
  Clean up prelude-coffee.el
  Auto install thrift-mode
  Helm cleanup
  Leaner Helm config and enable Helm version of Projectile commands
  remove curly braces from js electric-layout-rules
  ...
Work changes: ggtags, smex