Fix protocol error #362

TODO:
Handle the helpers in LUA, it could be added into Battle Window i think,
if someone know where should this be comment here !
Some work on container pagination

Bind lua functions for containers
Update onAddItem now it have the pagination slot
Note: getSize as i see is equal to getItemsCount, but not sure thats why
I've added !
A little mistake
Merge pull request #363 from conde2/master

Fix protocol error #362