Make AI controlled players throw dice

Status text now displays wizard name and action
Added debug() func in globals
Fixes in spell casting

Fix: It was not possible to cast a spell at far-left tiles (column 0) due
to the fact that js treats 0 values as (of course) not true.
Change: Updated status texts
Fix: Removed Hole type and replaced with Abyss in map Tiles enum
Replaced console.log with _Globals.debug calls