[Travis] Don't do Qt5 on Travis for now.

.travis.yml

@@ -11,14 +11,14 @@ env:
   global:
     - DISPLAY=:9
   matrix:
-    - CTK_QT_VERSION=5
+    # - CTK_QT_VERSION=5
     - CTK_QT_VERSION=4
 
 before_install:
   - sudo add-apt-repository --yes ppa:ubuntu-sdk-team/ppa
   - sudo apt-get update -qq
   - sudo apt-get install -y chrpath libqt4-dev qt4-dev-tools libvtk5-qt4-dev
-  - sudo apt-get install -y libqt5webkit5-dev qtcore5-dev qtwidgets5-dev qttools5-dev-tools libsqlite3-dev
+  # - sudo apt-get install -y libqt5webkit5-dev qtcore5-dev qtwidgets5-dev qttools5-dev-tools libsqlite3-dev
   - sudo apt-get install -y xpra xserver-xorg-video-dummy
 
 before_script: