try with newer ubuntu travis

Author: dfreedm

.travis.yml

@@ -1,16 +1,15 @@
 language: node_js
-sudo: false
+sudo: required
+dist: trusty
 node_js: 4
 addons:
   sauce_connect: true
   firefox: latest
   apt:
     sources:
     - google-chrome
-    - ubuntu-toolchain-r-test
     packages:
     - google-chrome-stable
-    - g++-4.8
 before_script:
 - export PATH=$PWD/node_modules/.bin:$PATH
 script:
@@ -20,4 +19,3 @@ env:
   global:
   - secure: c0kVrjNDtqd06Gyg4Xi3iopr0KCz1k0LbZeL+TCbnyCdmAE7m9FcJASWvM2Zr7d774hTiMSi0Z79SlV6XZhLN2pi4EsbdEpsnVeAXXH/GYzDKgpXbdfD/nQv4n1nMXL6XSaZkAX7WwgmrjzJ9cXQJYV9vNHIBRcGoVRRyCFx9v4=
   - secure: Mo+AVRGUmlDENnZ2GioF5pU62WhyLUMnPlSqzeodZzJoAnwcNr9VnHiRCgQBLnHCZwjbMv6C0vhWopY7lN9w77vlS5vr8MDZKjYT/YRl9jk0+hStJ+diSS9MD+FnNNerXe+V+WA6NYVHno3vdWRqDDMYzCdH/pyLukkuKdMFaAU=
-  - CXX=g++-4.8