Lua changes

Don't create an id for items when looking at them.
Moved /mccheck & /ghost to talkactions.
Added Game.createItem, Game.createMonster, Game.createNpc,
Game.startRaid
Added Tile:getHouse
Added Player:getHouse, Player:isInGhostMode, Player:setGhostMode
Forgot these.
Fix
Another Fix
Fix creature check bug

This commit fixes issue #345, and might be related to #340 and #341 too.
Remove unneccesary call
Merge pull request #348 from dalkon/master

Lua changes