melpa.milkbox.net is now melpa.org

Melpa has been moved to melpa.org.

Thanks for the great work! I wish my lisp skills was better so I could help out with some actual code.
Merge pull request #1 from gausby/patch-1

melpa.milkbox.net is now melpa.org
fix README
update header information
proper use of require
clean minor mode definiton
eval functionality not used

* already implemented in elixir-mode
update installation informations
just available on MELPA
now available on Marmalade
ignore alchemist package archive
add ability to run "mix test" on save, and support for red/green modeline
realizing some ideas
Merge branch 'test-red-green-cycle' of https://github.com/tonini/alchemist.el into on-save

Conflicts:
	alchemist-buffer.el
	alchemist.el