Update Lock documentation. Update CHANGELOG

docs/source/Contribs/Contrib-Extended-Room.md

@@ -132,7 +132,7 @@ with
     > room.add_room_state("summer", "empty")
     > room.get_stateful_desc()
 
-    This is a nice beach. It is completely empty
+    This is a nice beach. It is completely empty.
 
     > room.remove_room_state("empty")
     > room.add_room_state("full")
@@ -140,7 +140,7 @@ with
 
     This is a nice beach. It is full of people.
 
-There are four time-of-day states that are meant to be used with these tags. The
+There are four default time-of-day states that are meant to be used with these tags. The
 room tracks and changes these automatically. By default they are 'morning',
 'afternoon', 'evening' and 'night'. You can get the current time-slot with
 `room.get_time_of_day`. You can control them with
@@ -148,7 +148,7 @@ room tracks and changes these automatically. By default they are 'morning',
 ```
 ExtendedRoom.hours_per_day    # default 24
 ExtendedRoom.times_of_day     # dict of {season: (start, end), ...} where
-                              # the start/end are given as fractions of the day
+                              # the start/end are given as fractions of the day.
 ```
 
 You use these inside descriptions as normal:

docs/source/Contribs/Contrib-XYZGrid.md

@@ -319,6 +319,8 @@ Most users will want to just treat each map as a location, and name the
 "Z-coordinate" things like `Dungeon of Doom`, `The ice queen's palace` or `City
 of Blackhaven`. But you could also name it -1, 0, 1, 2, 3 if you wanted.
 
+> Note that the Zcoord is searched *non-case senstively* in the
+
 Pathfinding happens only within each XYMap (up/down is normally 'faked' by moving
 sideways to a new area of the XY plane).