Squashed commit of the following:

commit adaa865bee7c4e54ac27744e277fc3bf7c309731
Author: fkane <fkane@sundog-soft.com>
Date:   Sun Oct 26 19:36:53 2014 -0400

    Change spaces to tabs.

    Signed-off-by: fkane <fkane@sundog-soft.com>

commit 647441d5904e573072ac5ad658f251fa81717047
Author: fkane <fkane@sundog-soft.com>
Date:   Sun Oct 26 19:22:51 2014 -0400

    Remove extraneous commented code.

    Signed-off-by: fkane <fkane@sundog-soft.com>

commit 0a91af63be8a1a6a6c9c03b9e552370a8aff5855
Author: fkane <fkane@sundog-soft.com>
Date:   Sun Oct 26 19:16:41 2014 -0400

    Make external interrupt updates thread-safe (fixes loss of audio in Super Mario Sunshine, and perhaps others, on lower-end systems.)

    Signed-off-by: fkane <fkane@sundog-soft.com>
Merge branch 'master' of https://github.com/fkane/dolphin