Java Edition Classic 0.0.20a 02

0.0.20a_02 was a version of Classic released on June 21, 2009, sometime before 14:52 UTC to fix 2 bugs affecting the game

Fixes

 * Fixed a bug where if the player aims at a certain angle while placing a block, it will appear to go inside an existing block.
 * Fixed water transparency bug from the previous version.
 * Usernames are no longer hard to read.