fix a few typos

src/menu.h

@@ -64,10 +64,6 @@ struct List
 	/// @see Menu::PrevFound()
 	///
 	virtual void PrevFound(bool wrap) = 0;
-	
-	/// @see Menu::isFiltered()
-	///
-	virtual bool isFiltered() = 0;
 };
 
 /// This template class is generic menu capable of

src/regex_filter.h

@@ -42,7 +42,7 @@ template <typename T> struct RegexFilter
 		return m_rx.match(menu.Stringify(item));
 	}
 	
-	static std::string currentFilter(NCurses::Menu<T> &menu)
+	static std::string currentFilter(MenuT &menu)
 	{
 		std::string filter;
 		auto rf = menu.getFilter().template target< RegexFilter<T> >();
@@ -56,6 +56,4 @@ private:
 	FilterFunction m_custom_filter;
 };
 
-
-
 #endif

src/screen.h

@@ -159,7 +159,7 @@ class BasicScreen
 		
 		/// Gets X offset and width of current screen to be used eg. in Resize() function.
 		/// @param adjust_locked_screen indicates whether this function should
-		/// automatically adjust locked screen's dimensions (is there is one set)
+		/// automatically adjust locked screen's dimensions (if there is one set)
 		/// if current screen is going to be subwindow.
 		void GetWindowResizeParams(size_t &x_offset, size_t &width, bool adjust_locked_screen = true);