Issue: Handling of namespaces, ie: use statements and paths. Patch available.

[rbargerhuff]

@docwilmot Hello there, during our testing and extensive evaluation of Coder Upgrade module, we discovered that namespaces, such as the following were not being handled at all.

namespace taco; /* Standard namespace statement */
namespace taco\cat; // Sub-namespace

use Drush\Backdrop; /* Standard use statement */
use Drush\Boot as TestAlias; // Use statement with alias

We took it upon ourselves to address this after forking this project and we will be pushing our changes soon.

[bugfolder]

Fixed by #41.