Replace old option state class with new one everywhere

nw/tools/__init__.py

@@ -2,7 +2,7 @@
 
 from nw.tools.analyse import TextAnalysis
 from nw.tools.legacy import projectMaintenance
-from nw.tools.optlaststate import OptLastState
+from nw.tools.optionstate import OptionState
 from nw.tools.spellcheck import NWSpellCheck
 from nw.tools.spellenchant import NWSpellEnchant
 from nw.tools.spellsimple import NWSpellSimple
@@ -12,7 +12,7 @@ from nw.tools.wordcount import countWords
 __all__ = [
     "TextAnalysis",
     "projectMaintenance",
-    "OptLastState",
+    "OptionState",
     "NWSpellCheck",
     "NWSpellEnchant",
     "NWSpellSimple",