Update .travis.yml

Author: jeanlego

.travis.yml

@@ -1,19 +1,21 @@
 dist: trusty
 sudo: required
 language: c
-before_install:
+before_install:  
+- sudo add-apt-repository -y ppa:ubuntu-toolchain-r/test
 - sudo apt-get update -qq
-- sudo apt-get install -qq   - build-essential libx11-dev cmake flex bison ctags clang
-compiler:
-  - gcc
+- sudo apt-get 
+
+install: 
+  # C++14
+  - sudo apt-get install -qq build-essential libx11-dev cmake flex bison ctags clang
+  - sudo apt-get install -qq g++-6
+  - sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-6 90
+  
 # safelist
 branches:
   only:
   - jeanlego
 script: make && make install
 
-env:
-  global:
-    - CXX=g++-4.8
-    - NODE_ENV=development
-  
+