Add a virtual PreTranslateMessage() method.
(closes issue #162) reverse the calls to IsDialogMessage() and TranslateAccelerator()
Update version info for update-checker.
Tag the 1.6.2 release
Bump version number to 1.6.2
(Closes issue #161) * add option for showing the context menu on a left click on the tray icon so the user can disable this.
Tag the 1.6.1 release
Bump version number to 1.6.1
update to svn 1.6.3
Show the tray menu for left clicks too.
