remove executable flag from gloworb-medium.png
add missing tags into attack actions in knife.xml

blame reidy.
Update the ground tileset with some change on the rock palette.
Change wrong src path on human-male-default.xml (head spritesheet).
Add max delay on knife's attack animation.
Correct some wrong tiles and hidden tiles on 000-1 map,
Change back the compression to gzip.
Updated some wrong spawn objects in 000-1.
Fixed lots of alignements issues in the monsters' xml files.
Also added missing default direction for the spawn animations.
Added missing spaces in the croconut accessory.
Added missing directions for spawn animations in some accessory xml files.
add all particle effects into "all" atlas.