Update travis-ci to use trusty.

Signed-off-by: Owen O'Malley <omalley@apache.org>
diff --git a/.travis.yml b/.travis.yml
index 3149d2f..f02944d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,16 +1,16 @@
 language: cpp
+sudo: false
+dist: trusty
 compiler:
   - gcc
   - clang
-before_install:
-  - sudo add-apt-repository -y ppa:ubuntu-toolchain-r/test
-  - sudo apt-get -qq update
-  - sudo apt-get -qq install g++-4.8
-install:
-  - if [ "$CXX" = "g++" ]; then export CXX="g++-4.8"; fi
+jdk:
+  - openjdk7
 before_script:
   - mkdir build
   - cd build
   - cmake ..
+env:
+  - MAVEN_OPTS=-Xmx2g MAVEN_SKIP_RC=true
 script:
   - make package test-out