Cherry-pick "Merge branch 'XRootDUpdate-1.0-20180419' into '1.0'" into master
XRootD 4.8.2 Update, 1.0 branch (2018.04.20.)
See merge request !295 (merged)
(cherry picked from commit 00d4db93)
- 015853fd Upgraded the standalone XRootD build to version 4.8.2.