Enable Qt 5.4 in travis build

Author: paceholder

.travis.yml

@@ -11,15 +11,15 @@ env:
   #- QT_BASE=51
   #- QT_BASE=52
   #- QT_BASE=53
-  #- QT_BASE=54
+  - QT_BASE=54
   #- QT_BASE=55
   - QT_BASE=56
 
 before_install:
   #- if [ "$QT_BASE" = "51" ]; then sudo add-apt-repository ppa:beineri/opt-qt511-trusty -y; fi
   #- if [ "$QT_BASE" = "52" ]; then sudo add-apt-repository ppa:beineri/opt-qt521-trusty -y; fi
   #- if [ "$QT_BASE" = "53" ]; then sudo add-apt-repository ppa:beineri/opt-qt532-trusty -y; fi
-  #- if [ "$QT_BASE" = "54" ]; then sudo add-apt-repository ppa:beineri/opt-qt542-trusty -y; fi
+  - if [ "$QT_BASE" = "54" ]; then sudo add-apt-repository ppa:beineri/opt-qt542-trusty -y; fi
   #- if [ "$QT_BASE" = "55" ]; then sudo add-apt-repository ppa:beineri/opt-qt551-trusty -y; fi
   - if [ "$QT_BASE" = "56" ]; then sudo add-apt-repository ppa:beineri/opt-qt561-trusty -y; fi
   - sudo apt-get update -qq
@@ -28,7 +28,7 @@ install:
   #- if [ "$QT_BASE" = "51" ]; then sudo apt-get install -qq qt51base; source /opt/qt51/bin/qt51-env.sh; fi
   #- if [ "$QT_BASE" = "52" ]; then sudo apt-get install -qq qt52base; source /opt/qt52/bin/qt52-env.sh; fi
   #- if [ "$QT_BASE" = "53" ]; then sudo apt-get install -qq qt53base; source /opt/qt53/bin/qt53-env.sh; fi
-  #- if [ "$QT_BASE" = "54" ]; then sudo apt-get install -qq qt54base; source /opt/qt54/bin/qt54-env.sh; fi
+  - if [ "$QT_BASE" = "54" ]; then sudo apt-get install -qq qt54base; source /opt/qt54/bin/qt54-env.sh; fi
   #- if [ "$QT_BASE" = "55" ]; then sudo apt-get install -qq qt55base; source /opt/qt55/bin/qt55-env.sh; fi
   - if [ "$QT_BASE" = "56" ]; then sudo apt-get install -qq qt56base; source /opt/qt56/bin/qt56-env.sh; fi