beta7: lasting damage source; main menu

[netzakh]

• When the player receives some lasting damage effect (poison/burn/...) from a source, the messages about damage taken still mention the original source, e.g. "Poison wine hits ... for ..." even though the original source can be out of contact or even dead.
• In the main menu, if an item is selected by the corresponding letter key, the selection indicator does not move to the item. Specifically, I chose to save by pressing 'g', the game was saved but the first item (resume) remained highlighed as selected. Then I hit Enter to resume (which was highlighted), and the game was saved once again, i.e., out-of-sync between the selection indicator and the selection itself occurred.

[darkgod]

I'lll fix point 2, but point 1 is not a bug it's a feature, the game remembers what did what