Down arrow key in BlockParty activity has no functionality

[scomst]

Spets to reproduce:

1) Open block party 2) Start the game 3) Let the first block come down and press the down key

Expected Result: When you hold the down key, the block should come down immediately

Actual result: Block comes down at its own speed. Looks like this functionality is not provided.

[sayamindu]

The functionality you request are bound to space and page down. I'm attaching a trivial one liner patch to bind the down key as well.

[sayamindu]

Patch to implement the required feature.