allow s3 like storage provider to keep the remote configuration

[devsprint]

#378 - a small fix to allow other S3 like storages, tested against http://min.io

[scream314]

$ ~/bin/install-jdk.sh --target "/home/travis/oraclejdk8" --workspace "/home/travis/.cache/install-jdk" --feature "8" --license "BCL"
Ignoring license option: BCL -- using GPLv2+CE by default
install-jdk.sh 2019-07-17
Expected feature release number in range of 9 to 14, but got: 8
The command "~/bin/install-jdk.sh --target "/home/travis/oraclejdk8" --workspace "/home/travis/.cache/install-jdk" --feature "8" --license "BCL"" failed and exited with 3 during .

JDK 7 and 8 are not supported by install-jdk.sh anymore.

Any idea how to fix?