1.2.3.1 Tick, /trade search and overall oddities

So since you were busy, I decided to do those myself. I still didn't manage to fix /trade list, which completely ignores pages (check list of changes for details).

/trade search is currently under no permission, and basically lists every item which matches the search query. I added it due to popular demand at SBPlanet (DarkOS's server) where trade list would exceed 1000 items... which with the current trade list showing the entire list at once, wouldn't even list all the items (The max log size for scrolling up is 1000 or so). With trades forming this "Big Market" system, this should help players finding what they need.

Just read the commits for more info.