Added slab .OBJ files
in resources/materials/block/nonsolid/slab/..

3 kinds :
-bot slab
-top slab
-top sandstone slab (because the texture is different)

Files are made to be used with only one texture file for each block.
Just have to change the texture in the smt.


Signed-off-by: Thomas LAMSON <tomlabete@numericable.fr>
Fix inventories
Removed debug println.
Signed-off-by: Steven Downer <grinch@outlook.com>
Merge pull request #566 from Tomlabete/master

Added slab .OBJ files
Merge pull request #567 from Grinch/master

Removed debug println.
Merge pull request #564 from Sleaker/master

Monsters equipping items