PECL Packages

* Improve file with list of PECL Packages
* Changed php twig template for pecl packages list
* Fix tests setting the peclpackage data
BundleController

* Improve method to Set/Get Pecl Packages
Vagrant Bundle

* Return the object in setters methods
BundleController

* Created test for indexAction
* Added method to retrieve VagrantBundle Object
* Changed vagrantBundle call to use vagrantBundle getter
PHPUnit

* Added excluded directory
BundleController

* Create test for indexAction when generateFile fail
Pecl Packages

* Added support to install PECL packages
BundleController

* Moved app role to the end
Merge pull request #100 from fabiorphp/master

PECL Packages Support