Introduce PSR-4 autoloading

lib/model/AbstractModel.php

@@ -10,12 +10,20 @@
  * @version   0.22
  */
 
+namespace PrivateBin\Model;
+
+use Exception;
+use PrivateBin\configuration;
+use PrivateBin\data\AbstractData;
+use PrivateBin\sjcl;
+use stdClass;
+
 /**
  * model_abstract
  *
  * Abstract model for PrivateBin objects.
  */
-abstract class model_abstract
+abstract class AbstractModel
 {
     /**
      * Instance ID.
@@ -57,7 +65,7 @@ abstract class model_abstract
      * @param  privatebin_abstract $storage
      * @return void
      */
-    public function __construct(configuration $configuration, privatebin_abstract $storage)
+    public function __construct(configuration $configuration, AbstractData $storage)
     {
         $this->_conf = $configuration;
         $this->_store = $storage;

lib/model/comment.php

@@ -10,12 +10,19 @@
  * @version   0.22
  */
 
+namespace PrivateBin\model;
+
+use Exception;
+use PrivateBin\sjcl;
+use PrivateBin\trafficlimiter;
+use PrivateBin\vizhash16x16;
+
 /**
  * model_comment
  *
  * Model of a PrivateBin comment.
  */
-class model_comment extends model_abstract
+class comment extends AbstractModel
 {
     /**
      * Instance's parent.
@@ -118,7 +125,7 @@ class model_comment extends model_abstract
      * @throws Exception
      * @return void
      */
-    public function setPaste(model_paste $paste)
+    public function setPaste(paste $paste)
     {
         $this->_paste = $paste;
         $this->_data->meta->pasteid = $paste->getId();

lib/model/paste.php

@@ -10,12 +10,19 @@
  * @version   0.22
  */
 
+namespace PrivateBin\model;
+
+use Exception;
+use PrivateBin\privatebin;
+use PrivateBin\serversalt;
+use PrivateBin\sjcl;
+
 /**
  * model_paste
  *
  * Model of a PrivateBin paste.
  */
-class model_paste extends model_abstract
+class paste extends AbstractModel
 {
     /**
      * Get paste data.
@@ -130,7 +137,7 @@ class model_paste extends model_abstract
         {
             throw new Exception('Invalid data.', 62);
         }
-        $comment = new model_comment($this->_conf, $this->_store);
+        $comment = new comment($this->_conf, $this->_store);
         $comment->setPaste($this);
         $comment->setParentId($parentId);
         if ($commentId !== null) $comment->setId($commentId);