Honor system proxy settings#510

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drewhamilton wants to merge 5 commits intojfrog:masterfrom

drewhamilton:drew/system-proxy

Commits on Jun 1, 2021

Add fallback to JVM system proxy values
Drew Hamilton
committed
Fix `isHttps` logic
Drew Hamilton
committed

Commits on Jun 2, 2021

Implement handling for http.nonProxyHosts property
Drew Hamilton
committed
Implement DeployTaskProxyTest
Drew Hamilton
committed
Remove unused import
Drew Hamilton
committed