Make the SR2015 competition sound consumable.

The non-consumablity of this was an error in SR2014, and appears
to have crept into SR2015's budget as well.

Change-Id: Ib5dd13073a0aac71d818f25acda9b14ca2267003
Add server hosting for SR2015.

Based on SR2014, but allowing some extra for the competition.

Change-Id: I449a3015b11614f7205818fbdb8879e806ea4e6b