Refactor

[dvalchanov]

Final changes and additions.

[vesln]

Please add license and copyright to every single .php file:

/**
 * Aero.io API client for PHP
 *
 * @copyright Copyright 2012, aero.io (http://aero.io)
 * @license The MIT License
 */

[vesln]

Please setup Travis CI to run the tests on each commit in master, and add a travis badge to the "Readme" file.

Make sure it will run them on PHP versions: 5.2, 5.3 and 5.4 (if available)

http://about.travis-ci.org/docs/user/languages/php/

[vesln]

Missing comment.

[vesln]

This schema is a bit incomplete, please include not only the main attributes, but all of them, except checksum and announced.

[vesln]

You've used tabs instead of 4 spaces in a lot of files, for example ResponseTest.php. Please convert them to 4 spaces and configure your Vim to show you that you are using tabs instead of spaces.

[vesln]

AeroConnectionTest.php is empty, either remove it or write some friggin tests ;)

[vesln]

You have no tests for the path methods in the resources. Please check your test case since i find a lot of other issues there.