"Recent" minor changes (pack leaders, magic flags, broken doors)

Pack leaders are no longer the power-charmie they used to be. (Force)

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Magic character-flags now are magic-colored; e.g.,

  Elrond the Master of Rivendell is standing here (glowing).

now has "glowing" in magic color (or markup). (Dáin)

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You now get more informative error messages when trying to use broken or
blocked doors. Thanks Orlanth for the idea. (Dáin)