As discussed with Romain Guy in the email thread, the Apache 2.0
license applies to the affected .jpg files now and retroactively from
the time of import.
Each of the images was altered using the exiftool:
exiftool -URL=http://www.apache.org/licenses/LICENSE-2.0 \
-WebStatement=http://www.apache.org/licenses/LICENSE-2.0 \
-UsageTerms='Apache License Version 2.0'
Change-Id: I9843a8f9b285799cc28e824167cbe0f14e4e651e
