* Renamed private SetSysTrigger() to SetAutomaticTrigger().
* Added the '_' prefix to private methods that aren't called by anything outside
BMenuItem (ie. no friend classes either).
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@17005 a95241bf-73f2-0310-859d-f6bbb57e9c96