Assorted uploads

[Sniper297]

Forgot to make announcements on the most recent, so;

http://www.subsim.com/radioroom//downloads.php?do=file&id=5178

Sound mod to change the diving klaxon to alarm bells for U-boats.

http://www.subsim.com/radioroom//downloads.php?do=file&id=5179

Changes US radar PPI scope from red to green, works for 1.4 or 1.5.

http://www.subsim.com/radioroom//downloads.php?do=file&id=5186

Increases duration of decoys to double or triple original time.