cFileFormatUpdate will loop through old files and convert them to new files (should replace legacy old format loading code)
cItem has two new functions to load from Json and output Json, this will keep the items in Json standard
ChestEntity and FurnaceEntity use the new functions in cItem
git-svn-id: http://mc-server.googlecode.com/svn/trunk@35 0a769ca7-a7f5-676a-18bf-c427514a06d6
Made monster spawning code in cWorld.cpp a bit more compact and readable
srand() is only supposed to be called once in the whole program, and it's already called in the constructor of cWorld so it doesn't have to be in cWorld::Tick()
git-svn-id: http://mc-server.googlecode.com/svn/trunk@14 0a769ca7-a7f5-676a-18bf-c427514a06d6
