Java Edition 1.6

1.6-pre is the first pre-release for 1.6.1.

Fixes
19 bugs fixed
 * – Sitting in minecart is higher than it should be
 * – Unable to tie mobs to fence with less than 2 leads
 * – Binding "sneak" to any mouse button and trying to mount an entity crashes the game
 * – Can't hit mobs while jumping on horses
 * – Potion of Weakness tooltip
 * – Attribute modifiers randomly run out when given via items
 * – "Resource packs" translation missing on crowdin.net
 * – Health Boost extra health vanishes on login
 * – Tamed wolf's health depleted upon world loading
 * – Health Boost and Absorption potions names do not show correctly
 * – Water sounds when placing water from a bucket to water source reproduce twice
 * – Game crashes with a single frame compass
 * – Strength Potions being nerfed unintentionally [Not related to other Strength issues]
 * – If a team name has "-" in it, the argument for seeing if anyone is in the team doesn't work
 * – Superflat customisation screen have format errors in Australian English / String is missing at crowdin.net
 * – Scoreboard "Health" out of sync (rounds down)
 * – Crash at launch of game with invalid language selection
 * – Using /kill sets health to 2 billion
 * – Instant health effect set to a 29, 61, 93...253 value kills any player without any death message