Not a bug but hurtful behaviour: Don't move unit right away when X is pressed

[hugomflavio]

Describe the bug Accidentally pressing X with a unit selected will send that unit running away immediately.

Preferred behavior Since X is not commonly used, changing the behaviour so there's a pop-up to confirm, or so that the X unit only moves at the end of the turn (like auto-workers do), would give the player time to correct the order in the event of a mistake.

[lmoureaux]

Went for the much easier fix of changing the default shortcut to Shift+X

[hugomflavio]

Oooh that's actually awesome! Nice!