Cleanup in src/, adding namespaces, removing php closing tag and general code cleanup

src/ISupportPartialUpdate.php

@@ -1,5 +1,4 @@
-<?php
-namespace Moserware\Skills;
+<?php namespace Moserware\Skills;
 
 interface ISupportPartialUpdate
 {
@@ -7,5 +6,4 @@ interface ISupportPartialUpdate
      * Indicated how much of a skill update a player should receive where 0.0 represents no update and 1.0 represents 100% of the update.
      */
     public function getPartialUpdatePercentage();
-}
-?>
+}