Merge pull request #60 from whatyouhide/patch-1

Add `do` to the list of Elixir keywords
Fix a problem with the `do` Elixir keyword

Before this commit, this use of the `do` keyword in Elixir would be
autocompleted with an `end` by vim-endwise:

  do
    # stuff
  end

But this would not:

  defmodule A do
    # no `end` here

By replacing a whitespace match (\s) with a wildcard (*) in the Elixir regex,
this now works.