Spawns: add function to find a spawn to place a creature on
Protocol 8.40-.42 fixes, closes #272
Update readme
don't throw error on fail
mapio: fix load on new maps
bind set{Width,Height} of g_map to lua
mapio: don't add description twice
mapio: don't add saved with line in description
Bind {un,}lockVisibleFloor to lua
Fix map move pixels function

Thanks to @dalkon for this.
Bind g_minimap.updateTile to lua

This is needed to update tile removals from minimap widget.
Tiny fix for movePixels
Take out debug message
Increase maximum move offset to be 64 instead of 32
Fixup movePixels a little bit

Thanks to @dalkon for dis.
Only request tile cache to be updated once for both x & y
Animations are now optional

The default behaviour is still there though.
Add more tile flags to be checked for
Add selection to tile
Tiny fixes