Fixed experience bar

+ Added creative game mode check
Fix memory leak of world data when quitting a world.
This is a workaround to an FML bug: in SSP onConnectionClosed doesn't get always called for server side, this way the PacketHandler can't remove the PlayerInfo instance for the server and this holds references to world data.
Let foodTimer and waterTimer keep up with current time when in Creative Mode.
This will avoid to lose food and water equal to the time you were in Creative as soon as you switch back to Survival
Fix StackOverflow when chopping big trees.
No need to make a recursion vertically since we are already moving by "layers" with the while loop.
Merge pull request #278 from Smjert/master

Let foodTimer and waterTimer keep up with current time when in Creative ...
Merge pull request #273 from emris/XPBarFix

This fixes the XP bar number value that is to high and behind the heath, water and food bars. It also hides all bars in creative game mode.
Fixed a bug where the Anvil rules display was incorrectly showing that a LAST rule was achievable like an ANY rule.
Changed Hoe Recipe slightly to make more sense.
Kilns should now properly require a full log pile to start.
It should no longer be possible to smelt iron ore in a kiln.
Updated block bronze recipe so that the minimum level of 50% copper is actually attainable by increasing the max of Silver and Gold to 25% from 20%.
Pottery items should no longer replace some blocks if you attempt to place them in a block that is already occupied. Resolves #271
Bloom blocks should no longer lose their iron amount information if unloaded. No more 0% bloom items.
Flipped Medium Hit and Heavy Hit Ids so that they don't use the wrong method calls. Resolves #287
Thatch is now considered an opaque block. Resolves #279
language fix

typo, improvements and corrections for spanish, italian, portuguese and
russian
The Blast furnace now properly only accepts ore at a 1:1 ratio with flux. It will no longer suck up any ore unless there is flux present as well.
Merge pull request #290 from aliceingame/master

language fix
Version bump