Added RDoc. Fixed error in Bonfire JSON.

Perhaps [RDoc](http://rdoc.rubyforge.org) should `imply` `Ruby`. I'm not sure.

Sorry about the Bonfire error. Maybe it's a good idea to validate JSON before accepting a pull request. I wrote a small script that does this, but I forgot to run it this time.

Just in case you find it useful:

*validate_commit.sh*

    #!/bin/bash
    node validate_commit.js

*validate_commit.js*

    var fs = require('fs');
    fs.readFile('share/apps.json', 'utf-8', function (err, data) {
    	try {
    		JSON.parse(data);
    	} catch (ex) {
    		console.error("JSON is invalid!");
    		throw ex;
    	}
    });