implemented deletion of tasks

Signed-off-by: Stephan Richter <s.richter@srsoftware.de>

documents/src/main/java/de/srsoftware/umbrella/documents/SqliteDb.java

@@ -421,7 +421,7 @@ CREATE TABLE IF NOT EXISTS {0} ( {1} VARCHAR(255) PRIMARY KEY, {2} VARCHAR(255)
 				.execute(db);
 			return settings;
 		} catch (SQLException e){
-			throw new UmbrellaException(HTTP_SERVER_ERROR,"Failed to update customer settings");
+			throw new UmbrellaException("Failed to update customer settings");
 		}
 	}