Changed horn of plenty to magic harp; replaced plentiful gold with random gems; slightly increased generation of dwarvish mithril in the Halls; slightly modified Moria tribute level.

git-svn-id: https://unnethack.svn.sourceforge.net/svnroot/unnethack/trunk@1380 f1e491ac-5ded-4967-80bf-9f4855be876a
The stairs on the Moria tribute level are now placed in random rooms.

git-svn-id: https://unnethack.svn.sourceforge.net/svnroot/unnethack/trunk@1381 f1e491ac-5ded-4967-80bf-9f4855be876a
Removed superfluous spaces.

git-svn-id: https://unnethack.svn.sourceforge.net/svnroot/unnethack/trunk@1382 f1e491ac-5ded-4967-80bf-9f4855be876a