Added the missing import_seq(), settings(), param_file_setting() and reset_setting() methods.
This corresponds to one component of the patch_II file attached to https://gna.org/task/?6847 by Michael Bieri (https://gna.org/users/michaelbieri).
This prevented relax from launching the GUI.
Authored by: bugman 2010-01-14
Parent: [r10213]
Child: [r10215]
