Added qt.conf and dist.tcl.
TileMetaInfo.txt renamed to Tilesets.txt.

The file name changed.
The file's location changed to ~/.TileZed.
The format changed too.
Add some RoomObjects adjacent to east and south walls of rooms.

Tiles with meta-enum names ending with 'W' found just outside the east edge
of a room rectangle will be added to the room.  Similarly for meta-enum names
ending with 'N' below the south edge.
BaseCellItem tries to create missing map/lot images when a MapImage changes.
Reset stats before generating .lot files.