- Removed the parameter "sprache" from controller Message

- Added method escape to class DB_Model
- Changed method sendMessageVorlage of MessageLib to send messages trying
to use the same language of the receiver, and improved message errors
- Added OrganisationseinheitLib to handle a recursive search using in the
organisation tree
- Removed from PhrasesLib the method loadVorlagetext because is already
present in VorlageLib
- Changed method loadVorlagetext of VorlageLib, now it searches the template
using the organisation tree
- Added method getOneLevel to model Organisationseinheit_model to get one
level of the organisation tree

application/controllers/api/v1/system/Message.php

@@ -126,7 +126,6 @@ class Message extends APIv1_Controller
 				$this->post()['vorlage_kurzbz'],
 				$this->post()['oe_kurzbz'],
 				$this->post()['data'],
-				$this->post()['sprache'],
 				isset($this->post()['relationmessage_id']) ? $this->post()['relationmessage_id'] : null,
 				isset($this->post()['orgform_kurzbz']) ? $this->post()['orgform_kurzbz'] : null
 			);
@@ -213,10 +212,6 @@ class Message extends APIv1_Controller
 		{
 			return $this->_error('data is not set');
 		}
-		if (!isset($message['sprache']))
-		{
-			return $this->_error('sprache is not set');
-		}
 		
 		return $this->_success('Input data are valid');
 	}