* fixing missing -y flag in travis

.travis.yml

@@ -12,8 +12,8 @@ before_install:
   - if [ ["$TRAVIS_OS_NAME" == "linux"] && ["$CXX" == "g++"] ]; then export CXX="g++-4.8" CC="gcc-4.8"; fi
   - if [ "$TRAVIS_OS_NAME" == "linux" ]; then sudo add-apt-repository -y "deb http://archive.ubuntu.com/ubuntu/ trusty main universe"; fi
   - if [ "$TRAVIS_OS_NAME" == "linux" ]; then sudo apt-get install software-properties-common; fi
-  - if [ "$TRAVIS_OS_NAME" == "linux" ]; then sudo add-apt-repository ppa:george-edison55/cmake-3.x; fi
-  - if [ "$TRAVIS_OS_NAME" == "linux" ]; then sudo apt-get install --only-upgrade cmake; fi
+  - if [ "$TRAVIS_OS_NAME" == "linux" ]; then sudo add-apt-repository -y ppa:george-edison55/cmake-3.x; fi
+  - if [ "$TRAVIS_OS_NAME" == "linux" ]; then sudo apt-get install --only-upgrade cmake -qq; fi
   - if [ "$TRAVIS_OS_NAME" == "linux" ]; then sudo apt-get update -qq; fi
   - if [ "$TRAVIS_OS_NAME" == "linux" ]; then sudo apt-get install root-system -qq; fi
   - if [ "$TRAVIS_OS_NAME" == "linux" ]; then sudo apt-get clean; fi