Refactored to touch base with Object Calisthenics

The refactor, can provide an easy integration with frameworks like SF2 and ZF2.
In the case of SF2, the user just need to declare the services into the container and do the properly injetcion

Can easily be a bundle

Each object has it own responsibility

Using Guzzle instead of call libcurl manually and the OAuth extension
Update README.rst
Added Travis support
Merge branch 'master' of https://github.com/kinncj/Marketplace.PHP
Added composer to travis
Escaped namespace
Removed support to PHP 5.3 since the SDK is using getimagesizefromstring
Standard to MD
Fixed packagist namespaces
Coverage Removed
Merge pull request #18 from kinncj/master

Refactored to touch base with Object Calisthenics