[loading window] Unloading should be reported as well.

Themes/_fallback/Languages/en.ini

@@ -1657,6 +1657,8 @@ Error adding file '%s'.=Error adding file '%s'.
 Loading courses...=Loading courses...
 Loading songs...=Loading songs...
 Reloading...=Reloading...
+Unloading songs...=Unloading songs...
+Unloading courses...=Unloading courses...
 The folder "%s" appears to be a song folder.  All song folders must reside in a group folder.  For example, "Songs/Originals/My Song".=The folder "%s" appears to be a song folder. All song folders must reside in a group folder. For example, "Songs/Originals/My Song" will contain the music file (MP3, OGG...), the steps file (.sm, .dwi, .ksf...) and other related files.
 
 [SongUtil]

src/SongManager.cpp

@@ -98,6 +98,8 @@ void SongManager::InitAll()
 }
 
 static LocalizedString RELOADING ( "SongManager", "Reloading..." );
+static LocalizedString UNLOADING_SONGS ( "SongManager", "Unloading songs..." );
+static LocalizedString UNLOADING_COURSES ( "SongManager", "Unloading courses..." );
 void SongManager::Reload( bool bAllowFastLoad )
 {
 	FILEMAN->FlushDirCache( SpecialFiles::SONGS_DIR );
@@ -112,7 +114,13 @@ void SongManager::Reload( bool bAllowFastLoad )
 	// save scores before unloading songs, of the scores will be lost
 	PROFILEMAN->SaveMachineProfile();
 
+	if( pLoadingWindow )
+		pLoadingWindow->SetText( UNLOADING_COURSES );
+
 	FreeCourses();
+
+	if( pLoadingWindow )
+		pLoadingWindow->SetText( UNLOADING_SONGS );
 	FreeSongs();
 
 	const bool OldVal = PREFSMAN->m_bFastLoad;