Multiple fixes [SEE DESC]

- Removed two random block handling files in the item handling section
that didn't do anything. (One was an attempt at making slabs work, but
failed to realise that the coords would have to be the block CLICKED,
and another was just a random empty file for handling wooden planks.)
* Fixed placing repeater blocks not directioning properly
* Fixed wood directions breaking plank metadata
Merge pull request #176 from tigerw/bugfixes

Fixed repeater and wood placement