PDF-676 updated link to JAI download in ImageStream logging.

git-svn-id: http://anonsvn.icesoft.org/repo/icepdf/trunk/icepdf@39785 8668f098-c06c-11db-ba21-f49e70c34f74
PDF-698 addition of better null checks for loading images with imageProxy disabled.

git-svn-id: http://anonsvn.icesoft.org/repo/icepdf/trunk/icepdf@39790 8668f098-c06c-11db-ba21-f49e70c34f74