Auto-install puppet-mode
Set properly smartparens's default keymap
Add new command prelude-youtube
Don't swap Command & Option by default
[Fix #378] Add folders recursively to the load-path in prelude-add-subfolders-to-load-path
[Fix #377] Require smartparens-latex in latex module
Enable smartparens in the minubuffer during eval-expression
Add a basic version check
Bind hippie-expand to Command+/ as well
Add `prelude-github`

Conflicts:
	core/prelude-core.el
Merge remote-tracking branch 'upstream/master' into dfc-prelude

* upstream/master:
  Add `prelude-github`
  Bind hippie-expand to Command+/ as well
  Add a basic version check
  Enable smartparens in the minubuffer during eval-expression
  [Fix #377] Require smartparens-latex in latex module
  [Fix #378] Add folders recursively to the load-path in prelude-add-subfolders-to-load-path
  Don't swap Command & Option by default
  Add new command prelude-youtube
  Set properly smartparens's default keymap
  Auto-install puppet-mode