Add ascending/descending operation order in preferences

Remove default_preferences table
Force date by default in SearchPanel
Update TODO !!
Add a generic UpdatePreference instead of SetLanguage, SetXXX into Database

src/view/AccountPanel.cpp

@@ -385,7 +385,7 @@ void AccountPanel::InsertOperation(User* user, Operation* op, int line, bool fix
   if (fix)
     _fixCosts++;
 
-  if (op)
+  if (op && !fix)
     {
       for (it = _curOperations->begin(), curLine=1;
 	   it->fix_cost && it != _curOperations->end(); 
@@ -736,8 +736,16 @@ void AccountPanel::OnOperationModified(wxGridEvent& event)
 	{
 	  if ((*_curOperations)[i].fix_cost && !fix_op) continue;
 	  if (!(*_curOperations)[i].fix_cost && fix_op) break;
-	  if ((*_curOperations)[i].day > new_op.day)
-	    break;
+	  if (user->_preferences[wxT("operation_order")] == wxT("ASC"))
+	    {
+	      if ((*_curOperations)[i].day > new_op.day)
+		break;
+	    }
+	  else
+	    {
+	      if ((*_curOperations)[i].day < new_op.day)
+		break;
+	    }
 	}
 
       _curOperations->insert(_curOperations->begin()+i ,new_op);