MDL-31901: Changing interface of file picker, use renderers:

- Filepicker window is now resizable and draggable;
- filepicker&renderer: removed id substitution from renderer, replaced it with classes (better readability);
- filepicker: allowed tree and table view for search results;
- filepicker: fixed small bug with displaying external link checkbox
- filepicker: display additional information about file in select window, repository returns more formatted information

lang/en/repository.php

@@ -74,9 +74,11 @@
 $string['createrepository'] = 'Create a repository instance';
 $string['createxxinstance'] = 'Create "{$a}" instance';
 $string['date'] = 'Date';
+$string['datecreated'] = 'Created';
 $string['deleted'] = 'Repository deleted';
 $string['deleterepository'] = 'Delete this repository';
 $string['detailview'] = 'View details';
+$string['dimensions'] = 'Dimensions';
 $string['disabled'] = 'Disabled';
 $string['download'] = 'Download';
 $string['downloadfolder'] = 'Download all';

lib/outputrequirementslib.php

@@ -439,7 +439,7 @@ protected function find_module($component) {
                 case 'core_filepicker':
                     $module = array('name'     => 'core_filepicker',
                                     'fullpath' => '/repository/filepicker.js',
-                                    'requires' => array('base', 'node', 'node-event-simulate', 'json', 'async-queue', 'io-base', 'io-upload-iframe', 'io-form', 'yui2-menu', 'yui2-treeview', 'yui2-dragdrop', 'panel', 'cookie', 'datatable', 'datatable-sort'),
+                                    'requires' => array('base', 'node', 'node-event-simulate', 'json', 'async-queue', 'io-base', 'io-upload-iframe', 'io-form', 'yui2-menu', 'yui2-treeview', 'yui2-dragdrop', 'panel', 'cookie', 'datatable', 'datatable-sort', 'resize-plugin', 'dd-plugin', 'resize-constrain'),
                                     // TODO check if those all are really required
                                     'strings'  => array(array('add', 'repository'), array('back', 'repository'), array('cancel', 'moodle'), array('close', 'repository'),
                                                         array('cleancache', 'repository'), array('copying', 'repository'), array('date', 'repository'), array('downloadsucc', 'repository'),