GCC Compilers info for the OpenMP Compilers page

[Yun He]

Hi Jakub, Ed,

You helped in the previous year to provide the GCC compilers info published
at:
http://www.openmp.org/resources/openmp-compilers/

Could you please do so again now?  Our goal is to have up-to-date info for
SC17.

Please either edit the GDoc below directly (you may need Gmail to access),
or send me the entry via email, and I will add to it.
https://docs.google.com/document/d/1y-DVSSp4UB-rJ0oQdMNLThCoqRoxG-XMY0DlTu6o7zk/edit?ts=59f36ac2

Thanks!
Helen