RFR: 41: Bot launcher should detect ev. http proxy in environment

[Erik Duveblad via github.com]

The pull request has been updated with additional changes.

----------------

Added commits:
 - 46e3c901:	Fix copyright year in proxy/build.gradle
			Co-Authored-By: Robin Westberg <robin at westberg.se>

Pull request:
http://git.openjdk.java.net/skara/pull/27

Webrevs:
 - full: https://openjdk.github.io/cr/skara/27/webrev.01
 - inc: https://openjdk.github.io/cr/skara/27/webrev.00-01

Updated full patch:
http://git.openjdk.java.net/skara/pull/27.diff

Fetch command:
git fetch https://github.com/openjdk/skara.git pull/27/head:pull/27