Clean up the slotlist struct
Work around a problem with MWRender::Player::renderPlayer

NpcAnimation::setViewMode makes a call to the character controller, in the
mechanics manager, to forcefully update the character's state. This in turn
makes a call to the player's old NpcAniamtion object that was just deleted.

The mechanics manager will eventually remove and reinsert the player, so the
old character controller will be removed and a new one will get the right
Animation object again, but not in time for the setViewMode call.

There's many factors that all contribute to this run-around, which needs
discussion on how to best fix.
Merge remote-tracking branch 'zini/master' into animations
silenced a warning
Move, moveworld script instructions
Corrected unused opcodes
fixed parsing of end statements in scripts with IDs matching keywords
Bugfix #742
Fix changeWeather
Fix unused variable