Update GIFLIB to 5.1.4 DO NOT MERGE am: 75c90ad75c  -s ours am: fcb372c282 am: 7998de9149  -s ours am: d7a50967ff am: 301b8f1180
am: cb0795e294

Change-Id: I0c11aac3616f502ee3182e233a7e497cd3230c9e