Pick up and try-id potions
Enable full logging output

Should make this configurable some day perhaps.
Don't crash in the Abyss
Pick up and try-id scrolls

The "Blink to where?" message appears in the targeting mouse mode.
We also sometimes get messages from previous turns in mouse mode,
so previously we ignored all messages received when in mouse mode.
Now, we drop messages whose turn counter is less than the turn
counter of an earlier message.
Handle potion of experience
Don't try to equip unusable items (e.g. due to mutations)