Since https://github.com/tonini/alchemist.el/commit/395e6717
calling `alchemist-iex-reload-module` reloads the module in
the current buffer via `r(Module)`
(Also my first contribution to spacemacs, hope I'm holding it right)
Update Readme to reflect changes to packages.el
Helm seems to treat "!" specially in pattern matching, so having a ! in
the pattern string when traversing directories is problematic. This
change fixes#2737, because as far as I can tell "+" has no special
meaning in a helm pattern.
Of course, we can choose a different character, but I'm fond of "+" as
representing "more layers here".
