Expand scope of proxy-on/off.

[KineticTheory]

Background

• After debugging a recent proxy issue, it was determined that our automation/environments need to be expanded.

Description of changes

• LANL *-rfe machines need different settings than their predecessors.
• Also set proxy variables for rsync* and proxy*.

Status

• Reference:
  • Pre-Merge Code Review
  • CDash Status
• Checks
  • Travis/Appveyor CI checks pass
  • Code coverage does not decrease
  • Valgrind test passes
  • Toss3 checks pass
  • Trinitite checks pass
  • Code reviewed/approved, sufficient DbC checks, testing, documentation

[codecov]

Codecov Report

Merging #1130 (fa81703) into develop (751f28b) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           develop   #1130   +/-   ##
=======================================
  Coverage     89.0%   89.0%           
=======================================
  Files          374     374           
  Lines        19258   19258           
=======================================
  Hits         17154   17154           
  Misses        2104    2104