- Added new FilterWidget in the Administration menu for the phrases

- Extension installer is visible only for system/extensions
- Removed the old phrases editor from Vilesci
- system/checksystem.php does not call anymore system/phrasesupdate.php
- system/phrasesupdate.php has been removed
- Added new directory application/phrases
- application/phrases contains one file for each phrases category, and one file contains all the phrases for that category
- Added new controller system/phrases/Manager to install phrases in the core
- Added new constants CORE_PHRASES_DIRECTORY, INSERT_BY, APP, CATEGORY, PHRASE, SPRACHE, TEXT and DESCRIPTION to libraries/PhrasesLib
- libraries/PhrasesLib now loads EPrintfLib
- Removed public methods getPhraseByApp, getPhraseInhalt, delPhrasentext, savePhrase, getPhrasentextById, insertPhraseinhalt, getVorlagetextById and updatePhraseInhalt from libraries/PhrasesLib
- Renamed public method getJSON to toJSON in libraries/PhrasesLib
- Added new public methods installFromCore and installFrom to libraries/PhrasesLib
- Added new private methods _installPhrases and _addPhrases to libraries/PhrasesLib

application/widgets/FilterWidget.php

@@ -410,7 +410,6 @@ class FilterWidget extends Widget
 
 		// Read the all session for this filter widget
 		$session = $this->filterwidgetlib->getSession();
-
 		// If session is NOT empty -> a filter was already loaded
 		if ($session != null)
 		{
@@ -510,6 +509,10 @@ class FilterWidget extends Widget
 					);
 				}
 			}
+			else
+			{
+				show_error('The JSON contained within the database filter definition is not valid');
+			}
 		}
 
 		// NOTE: latest operations to be performed in the session to be shure that they are always present