Do not create uninstall shortcut in start menu

According to Microsoft Design guidelines (http://msdn.microsoft.com/en-us/library/windows/desktop/aa511447.aspx) no icons for uninstallers should be created.

Signed-off-by: Sven Strickroth <email@cs-ware.de>
Do not create folder for single link

Signed-off-by: Sven Strickroth <email@cs-ware.de>
Merge pull request #1162 from csware/startmenu-according-to-ms-guidelines

Startmenu according to ms guidelines