Still trying to get .DS_Store ignores to work universally.

Signed-off-by: David Brainard <brainard@psych.upenn.edu>
Still trying to get all .DS_Store files ignored.

Signed-off-by: David Brainard <brainard@psych.upenn.edu>
Fixing up some stupid .DS_Store nonsense.

Signed-off-by: David Brainard <brainard@psych.upenn.edu>

Conflicts:
	external/.DS_Store