Update elixir-mode--version
Remove erroneous defrecord syntax.
Merge pull request #79 from elixir-lang/rm-defrecord-grammar

Remove erroneous defrecord syntax.
Update README to point at melpa-stable.
Update README.md
Update README.md

Removed "Install latest version" and replaced with "Download latest release".
Update release version.
Update changelog for v1.4.4.