RFR: 34: Simplify Gradle proxy plugin

[Erik Duveblad via github.com]

Hi all,

this small patch simplifies hows the `no_proxy` environment variable is handle in the Gradle proxy plugin.

Thanks,
Erik

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Commits:
 - 7d24a6ef:	34: Simplify Gradle proxy plugin

Pull request:
http://git.openjdk.java.net/skara/pull/18

Webrev:
https://openjdk.github.io/cr/skara/18/webrev.00

Patch:
http://git.openjdk.java.net/skara/pull/18.diff

Fetch command:
git fetch https://github.com/openjdk/skara.git 7d24a6ef:pr/18