[12gevmoller_sim] [JeffersonLab/remoll] 214167: Update .travis.yml

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/JeffersonLab/remoll
  Commit: 214167cbd8e65793078f2c61e87d342368c0ff3f
      https://github.com/JeffersonLab/remoll/commit/214167cbd8e65793078f2c61e87d342368c0ff3f
  Author: Wouter Deconinck <wdconinc at gmail.com>
  Date:   2016-12-09 (Fri, 09 Dec 2016)

  Changed paths:
    M .travis.yml

  Log Message:
  -----------
  Update .travis.yml

Install root-system (5.34 in trusty)