Squashed commit of the following:

commit 473dbea40f37d77d86ec8dce2cdd31d924f90124
Author: ko <git@yaksok.net>
Date:   Tue Oct 8 22:12:26 2013 -0700

    Fix #12 with a SoundPool and a single .wav.

    Allegedly works on SGS2.
    Sound issues on CM 10.3 VZ Galaxy Nexus.

commit ae27acf180f2f7e94f3838512afe1a1195b46547
Author: ko <git@yaksok.net>
Date:   Tue Oct 8 00:47:54 2013 -0700

    Add sfx for #12.