Clarify license terms for Romain Guy's artwork.

As discussed with Romain Guy in the email thread, the Apache 2.0
license applies to the affected .jpg file now and retroactively from
the time of import.

The image was altered using the exiftool:

$ exiftool  -WebStatement= \
    -UsageTerms='Apache License Version 2.0' ...

$ exiftool -URL -WebStatement -UsageTerms \
Web Statement                   :
Usage Terms                     : Apache License Version 2.0

Change-Id: Ib654f51773c8ca7970987caf3a5781612e418e7f
1 file changed
tree: 4c1a7f2a3f75dc47532dbdcf1f13d92232760898
  1. app/