Allow BlockExtenders to transmit any received redstone signal to its connected tile
 - The facing direction of the block extender is the only output side for the redstone signal, while all the others sides are redstone signal inputs only
 - Redstone dust particles appear while it is receiving/transmitting a signal
 - Not implemented in buffers or the wireless block extender
No need to update all neighbors when a block extender starts/stops outputting a redstone signal, only update the connected tile
Fixed incorrectly named buffers (Filtered Buffer was named Advanced Buffer and Advanced Buffer had no name)
* Fixed block extenders/buffers not dropping the correct subblock when broken
* Fixed missing particle texture when breaking buffers (just used obsidian like the extenders)
* Made hardness of blocks more normal
* Allow enabling/disabling redstone signal transmission of block extenders by shift+right clicking with an empty hand
* Made block extenders and buffers have solid sides so that levers/buttons can be placed on them
Dim the ender pearl when redstone transmission is disabled
Merge pull request #1 from squeek502/master

Allow BlockExtenders to transmit received redstone signal