Have tuareg mode set the compile command

to utilize corebuild via opam
Improve ocaml module documentation

Add some documentation about environment assumptions, and correct some
grammar issues.
Use new melpa.org address
Update README.md

New Emacs release.
Update prelude-packages.el

New URL, according to http://melpa.org/#/getting-started
Merge pull request #725 from marknsikora/melpa-org

Use new melpa.org address
Merge pull request #726 from biffhero/master

Two quick housekeeping changes
Merge pull request #724 from RadicalZephyr/ocaml

Ocaml improvements
Remove custom erc notifications code

It should be replaced with the use of something like
https://github.com/jwiegley/alert
Merge branch 'master' of https://github.com/bbatsov/prelude