[Travis] First attempt to setup Qt4 & Qt5 builds

.travis.yml

@@ -1,14 +1,21 @@
 language: cpp
 
+env:
+  - QT=qt4
+  - QT=qt5
+
 before_install:
-  - "export DISPLAY=:99.0"
-  - "sh -e /etc/init.d/xvfb start"
+  - export DISPLAY=:99.0
+  - sh -e /etc/init.d/xvfb start
 
 install:
   - sudo apt-get -qq update
-  - sudo apt-get -qq install libqt4-dev libqt4-webkit libqt4-sql-sqlite libssl-dev pkg-config libhunspell-dev
+  - sudo apt-get -qq install libssl-dev pkg-config libhunspell-dev
+  - [[ "$QT" == "qt4" ]] && sudo apt-get -qq install libqt4-dev libqt4-webkit libqt4-sql-sqlite
+  - [[ "$QT" == "qt5" ]] && sudo apt-get -qq install libqt5-dev
 
 script:
+  - [[ "$QT" == "qt5" ]] && alias qmake=`qtchooser -qt=qt5 -run-tool=qmake --help | head -n1 | cut -d" " -f2`
   - qmake
   - make
-  - cd scripts && ./run_tests.sh
+  - cd scripts && source run_tests.sh