Here is the nightly for OS X on 21 Sep 2015 - Revision 26e65cc
Open non-feature issues in 
Mantis: 123
Group: Standard
fso_Standard_20150921_26e65cc.tgzMD5Sum------------------------------------------------------------------------
commit 0132e2a
Author: niffiwan <Sat Sep 19 18:55:30 2015 +1000>
Commit: niffiwan <Sat Sep 19 18:55:30 2015 +1000>
    Fix comment for HudGaugeTalkingHead::render
 code/hud/hudmessage.cpp | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)
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commit 835c4a7
Author: MageKing17 <Fri Sep 18 21:22:07 2015 -0700>
Commit: MageKing17 <Fri Sep 18 21:22:07 2015 -0700>
    Make script_state::UnloadImages() call bm_release instead of bm_unload.
 code/parse/scripting.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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commit 12f4bcf
Author: niffiwan <Tue Sep 15 21:35:43 2015 +1000>
Commit: niffiwan <Fri Sep 18 19:34:28 2015 +1000>
    Reduce bmpslot usage by headz
 code/graphics/generic.cpp       | 5 +++++
 code/mission/missionmessage.cpp | 3 ++-
 2 files changed, 7 insertions(+), 1 deletion(-)