Prompt to update uses of the style when "Default" is renamed

As far as I can tell, Default was only excluded to avoid prompting when
creating a new style, but whether or not a style is new is now an
explicit parameter to the editor so it's unneeded.

Originally committed to SVN as r6453.

aegisub/src/dialog_style_editor.cpp

@@ -374,7 +374,7 @@ void DialogStyleEditor::Apply(bool apply, bool close) {
 		// Style name change
 		bool did_rename = false;
 		if (work->name != newStyleName) {
-			if (!store && !is_new && work->name != "Default") {
+			if (!store && !is_new) {
 				// See if user wants to update style name through script
 				int answer = wxMessageBox(_("Do you want to change all instances of this style in the script to this new name?"), _("Update script?"), wxYES_NO | wxCANCEL);
 

aegisub/src/dialog_style_manager.cpp

@@ -105,7 +105,7 @@ static wxSizer *make_edit_buttons(wxWindow *parent, wxString move_label, wxButto
 }
 
 DialogStyleManager::DialogStyleManager(agi::Context *context)
-: wxDialog (context->parent,-1,_("Styles Manager"),wxDefaultPosition,wxDefaultSize,wxDEFAULT_DIALOG_STYLE,"DialogStylesManager")
+: wxDialog(context->parent, -1, _("Styles Manager"))
 , c(context)
 {
 	using std::tr1::bind;