Move to epel 7-1 release

EPEL7 has updated.  AFAIK there is no better way to determine this; we
could possibly scrape [1] but this just seems to replace one problem
with another (maintaining the scraping)

[1] http://download.fedoraproject.org/pub/epel/7/x86_64/repoview/epel-release.html

Change-Id: Iadf66c92fcf31edeb0f364a5b1de5d87630e9a42
Merge "Move to epel 7-1 release"