Implementation of notifications for Windows OS.
Merge branch 'master' of https://github.com/nurupo/wesnoth-old into nurupo-master
Spell fix.
Add source file for windows notification support to scons
Merge branch 'nurupo-master'
vc project update
cb project update
Fix that tod's sound attributes was not saved.
Simplified the code.
Add the 24 Hour Schedule to the editor.
Mark the currently selected time of day schedule in the menu.
Remove obsolete macros for 320 resolutions.
Scenario playlist editor.
Reduced the show_menu methods to a single one.

This fixes a warning about overriden methods...
Reduced the show_menu methods on the game part as well.
Indentation and comment clean up.
Added copyright notice.
Small code format issue.
Keep the playlist menu open ofter a selection.
cleanup RELEASE_NOTES after announcing