Was Added Cmyk color format
Simple changes

1) SaverLoader: I do private class members 'preferences' and 'editor' as
final class members.
2) RadioButtonMenu: now I check <whether has 'checkedMenuItem' value
'null'> at 'setChecked' method, not at 'uncheckMenuItem' method, as it
was before.
3) ColorDescriptionTextCreator: this class get names of color components
at constructor of class, not at 'create' (in order not to pass arguments
when calling constantly).