Test report by @boegel
SUCCESS
Build succeeded for 2 out of 2 (2 easyconfigs in this PR)
node2617.swalot.os - Linux centos linux 7.2.1511, Intel(R) Xeon(R) CPU E5-2660 v3 @ 2.60GHz, Python 2.7.5
See https://gist.github.com/29fdfbb8f3eb33d250df65144bd3c161 for a full test report.

Test report by @boegel
SUCCESS
Build succeeded for 2 out of 2 (2 easyconfigs in this PR)
node2127.delcatty.os - Linux SL 6.8, Intel(R) Xeon(R) CPU E5-2670 0 @ 2.60GHz, Python 2.6.6
See https://gist.github.com/645654744eadc1c6b62c4662d3537312 for a full test report.

Test report by @boegel
SUCCESS
Build succeeded for 2 out of 2 (2 easyconfigs in this PR)
node2127.delcatty.os - Linux SL 6.8, Intel(R) Xeon(R) CPU E5-2670 0 @ 2.60GHz, Python 2.6.6
See https://gist.github.com/5c646e4e76798e8e9daac922fbff092e for a full test report.

@verdurin please review?

The Qwt easyconfig is a simple toolchain/version bump (see eb --review-pr 4019);
the QwtPolar easyconfig is new.

@boegel - builds locally and looks fine.

Thanks for the review @verdurin!