Edoc fixes for readable HTML generation

* Fix vertical whitespace and code formatting in module doc string (particularly noticeable in the wm modules)
* Some textual improvements to same
* Various fixes to `@see/@link`:
  * Separate `@see` from `@doc`
  * Replace `@see` with `@link` where appropriate
  * Fix cross-references to other Riak applications
  * Drop `@see` where it isn't actually part of edoc

* UTF-8 encoding for files where Nuno Preguiça is referenced in edoc strings so rendered properly
* Fix URLs in edoc strings (require [] for URL-ification)
* Various grammar fixes
* Replace "" and '' with `' where appropriate
Didn't try.

Sent from my iPad

> On Aug 15, 2014, at 1:28 PM, Sean Cribbs <notifications@github.com> wrote:
> 
> In src/riak_kv_mrc_pipe.erl:
> 
> > @@ -20,7 +20,7 @@
> >  
> >  %% @doc Riak KV MapReduce / Riak Pipe Compatibility
> >  %%
> > -%% == About using `{modfun, Mod, Fun, Arg}' generator to a MapReduce job ==
> > +%% == About using {modfun, Mod, Fun, Arg} generator to a MapReduce job ==
> Is it possible to manually insert the heading instead of using the shortcut? e.g.
> 
> <h2>About using <code>{modfun, Mod, Fun, Arg}</code> generator to a MapReduce job</h2>
> —
> Reply to this email directly or view it on GitHub.