* removed the method "as_sql" in very field format * removed all methods which starts with "as_sql_..." in the sql module * removed old test cases of the "test_sql" module * implemented a class "SqlFactory", which creates the sql statements * implemented test cases for the new functions of the "SqlFactory"
* Fixed layout to render properly independent of system font size by switching to grid geometry manager. However, for some reason this breaks resizing so as a workaround the window is not resizeable for now. * Change file dialogs to preserve the chosen file upon reopening. * Removed various dialogs and changed them to messages in the validation result log. * Added that CID and data entries in GUI use optional paths specified at command line.