Attempt 2 to fix TravisCI failing

.travis.yml

@@ -1,11 +1,5 @@
 sudo: required
 language: cpp
-addons:
-  apt:
-    sources:
-    - ubuntu-toolchain-r-test
-    packages:
-    - g++-4.8
-before_install: sudo apt-get -qq update
+before_install: sudo apt-get update
 install: ./install.sh
 script: ant test