diff --git a/README.txt b/README.txt
index f6ff53d..a6caa31 100644
--- a/README.txt
+++ b/README.txt
@@ -1,13 +1,12 @@
 This folder contains the h5p general library. The files within this folder are not specific to any framework.
 
 Any interaction with LMS, CMS or other frameworks is done through interfaces. Plattforms needs to implement
-the following interfaces in order for the h5p libraries to work:
-
- - TODO: Fill in here
-
-In addition frameworks need to do the following:
+the H5PFrameworkInterface(in h5p.classes.php) and also do the following:
 
  - Provide a form for uploading h5p packages.
  - Place the uploaded h5p packages in a temporary directory
+ +++
 
-See existing implementations for details. For instance the Drupal h5p module located on drupal.org/project/h5p
\ No newline at end of file
+See existing implementations for details. For instance the Drupal h5p module located on drupal.org/project/h5p
+
+We will make available documentations and tutorials for creating platform integrations in the future
diff --git a/h5p.classes.php b/h5p.classes.php
index 5940e06..a6add6b 100644
--- a/h5p.classes.php
+++ b/h5p.classes.php
@@ -412,13 +412,13 @@ interface H5PFrameworkInterface {
    * Start an atomic operation against the dependency storage
    */
   public function lockDependencyStorage();
-  
+
   /**
    * Stops an atomic operation against the dependency storage
    */
   public function unlockDependencyStorage();
-  
-  
+
+
   /**
    * Delete a library from database and file system
    *
@@ -1275,7 +1275,8 @@ class H5PStorage {
       }
       $destination_path = $libraries_path . DIRECTORY_SEPARATOR . H5PCore::libraryToString($library, TRUE);
       H5PCore::deleteFileTree($destination_path);
-      rename($library['uploadDirectory'], $destination_path);
+      $this->h5pC->copyFileTree($library['uploadDirectory'], $destination_path);
+      H5PCore::deleteFileTree($library['uploadDirectory']);
 
       $library_saved = TRUE;
     }
@@ -1305,8 +1306,8 @@ class H5PStorage {
 
       // Find out which libraries are used by this package/content
       $librariesInUse = array();
-      $this->h5pC->findLibraryDependencies($librariesInUse, $this->h5pC->mainJsonData);
-
+      $nextWeight = $this->h5pC->findLibraryDependencies($librariesInUse, $this->h5pC->mainJsonData);
+      
       // Save content
       if ($content === NULL) {
         $content = array();
@@ -1326,7 +1327,8 @@ class H5PStorage {
 
       // Move the content folder
       $destination_path = $contents_path . DIRECTORY_SEPARATOR . $contentId;
-      @rename($current_path, $destination_path);
+      $this->h5pC->copyFileTree($current_path, $destination_path);
+      H5PCore::deleteFileTree($current_path);
 
       // Save the content library dependencies
       $this->h5pF->saveLibraryUsage($contentId, $librariesInUse);
@@ -1836,9 +1838,12 @@ class H5PCore {
    *
    * @param array $librariesUsed Flat list of all dependencies.
    * @param array $library To find all dependencies for.
-   * @param bool $editor Used interally to force all preloaded sub dependencies of an editor dependecy to be editor dependencies.
+   * @param int $nextWeight An integer determining the order of the libraries
+   *  when they are loaded
+   * @param bool $editor Used interally to force all preloaded sub dependencies 
+   *  of an editor dependecy to be editor dependencies.
    */
-  public function findLibraryDependencies(&$dependencies, $library, $editor = FALSE) {
+  public function findLibraryDependencies(&$dependencies, $library, $nextWeight = 1, $editor = FALSE) {
     foreach (array('dynamic', 'preloaded', 'editor') as $type) {
       $property = $type . 'Dependencies';
       if (!isset($library[$property])) {
@@ -1862,7 +1867,8 @@ class H5PCore {
             'library' => $dependencyLibrary,
             'type' => $type
           );
-          $this->findLibraryDependencies($dependencies, $dependencyLibrary, $type === 'editor');
+          $nextWeight = $this->findLibraryDependencies($dependencies, $dependencyLibrary, $nextWeight, $type === 'editor');
+          $dependencies[$dependencyKey]['weight'] = $nextWeight++;
         }
         else {
           // This site is missing a dependency!
@@ -1870,6 +1876,7 @@ class H5PCore {
         }
       }
     }
+    return $nextWeight;
   }
 
   /**
@@ -2220,8 +2227,7 @@ class H5PCore {
 class H5PContentValidator {
   public $h5pF;
   public $h5pC;
-  private $typeMap;
-  private $libraries, $dependencies;
+  private $typeMap, $libraries, $dependencies, $nextWeight;
 
   /**
    * Constructor for the H5PContentValidator
@@ -2247,6 +2253,7 @@ class H5PContentValidator {
       'select' => 'validateSelect',
       'library' => 'validateLibrary',
     );
+    $this->nextWeight = 1;
 
     // Keep track of the libraries we load to avoid loading it multiple times.
     $this->libraries = array();
@@ -2634,7 +2641,8 @@ class H5PContentValidator {
           'type' => 'preloaded'
         );
 
-        $this->h5pC->findLibraryDependencies($this->dependencies, $library);
+        $this->nextWeight = $this->h5pC->findLibraryDependencies($this->dependencies, $library, $this->nextWeight);
+        $this->dependencies[$depkey]['weight'] = $this->nextWeight++;
       }
     }
     else {