Add a travis build of subsurface

This runs a subsurface script/build.sh build in travis-ci, and runs the
tests afterwards.

The build runs on the Ubuntu Trusty image, but due to the fact that the
Qt shipped there is to old, it installs a Qt 5.8 from qt.io , and with
some trickery caches it.

Hacked out are things that doesn't build with Qt 5.8, and the rest is
built against WebEngine.

The tests currently fail, and I really don't know why, but its a clear
indication that they aren't run that often. This cam makes sure they are
run at least. The actual testing is just commented out for that reason.

Signed-off-by: Anton Lundin <glance@acc.umu.se>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

.travis.yml

@@ -0,0 +1,47 @@
+language: c++
+
+dist: trusty
+
+cache:
+    directories:
+        - Qt
+
+addons:
+    apt:
+        packages:
+            - git
+            - g++
+            - make
+            - autoconf
+            - automake
+            - libtool
+            - cmake
+            - pkg-config
+            - libxml2-dev
+            - libxslt1-dev
+            - libzip-dev
+            - libsqlite3-dev
+            - libusb-1.0-0-dev
+            - libssl-dev
+            - libssh2-1-dev
+            - libcurl4-openssl-dev
+            # Not a subsurface dependency, but a Qt dependency
+            - mesa-common-dev
+
+before_install:
+    - if [ ! -e Qt/5.8 ] ; then
+          rm -rf Qt ;
+          wget http://download.qt.io/official_releases/qt/5.8/5.8.0/qt-opensource-linux-x64-android-5.8.0.run ;
+          chmod +x ./qt-opensource-linux-x64-android-5.8.0.run ;
+          ./qt-opensource-linux-x64-android-5.8.0.run -platform minimal --script qt-installer-noninteractive.qs --no-force-installations ;
+      fi
+
+script:
+    - perl -pi -e 's/BUILDGRANTLEE=1/BUILDGRANTLEE=0/' scripts/build.sh
+    - perl -pi -e 's/BUILDMARBLE=1/BUILDMARBLE=0/' scripts/build.sh
+    - perl -pi -e 's/-DNO_PRINTING=OFF/-DNO_PRINTING=ON -DNO_MARBLE=ON -DUSE_WEBENGINE=ON/' scripts/build.sh
+    - export CMAKE_PREFIX_PATH=$PWD/Qt/5.8/gcc_64/lib/cmake ;
+      cd .. ;
+      bash -e ./subsurface/scripts/build.sh
+#    - cd subsurface/build ; env CTEST_OUTPUT_ON_FAILURE=1 make check
+#    - cd subsurface/build-mobile ; env CTEST_OUTPUT_ON_FAILURE=1 make check

qt-installer-noninteractive.qs

@@ -0,0 +1,60 @@
+// http://stackoverflow.com/a/34032216/78204
+
+function Controller() {
+    installer.autoRejectMessageBoxes();
+    installer.setMessageBoxAutomaticAnswer("OverwriteTargetDirectory", QMessageBox.Yes);
+    installer.installationFinished.connect(function() {
+        gui.clickButton(buttons.NextButton);
+    })
+}
+
+Controller.prototype.WelcomePageCallback = function() {
+    gui.clickButton(buttons.NextButton);
+}
+
+Controller.prototype.CredentialsPageCallback = function() {
+    gui.clickButton(buttons.NextButton);
+}
+
+Controller.prototype.IntroductionPageCallback = function() {
+    gui.clickButton(buttons.NextButton);
+}
+
+Controller.prototype.TargetDirectoryPageCallback = function()
+{
+    //gui.currentPageWidget().TargetDirectoryLineEdit.setText(installer.value("HomeDir") + "/Qt");
+    gui.currentPageWidget().TargetDirectoryLineEdit.setText(installer.value("InstallerDirPath") + "/Qt");
+    //gui.currentPageWidget().TargetDirectoryLineEdit.setText("/scratch/Qt");
+    gui.clickButton(buttons.NextButton);
+}
+
+Controller.prototype.ComponentSelectionPageCallback = function() {
+    var widget = gui.currentPageWidget();
+
+    widget.selectAll();
+    widget.deselectComponent('qt.58.src');
+
+    gui.clickButton(buttons.NextButton);
+}
+
+Controller.prototype.LicenseAgreementPageCallback = function() {
+    gui.currentPageWidget().AcceptLicenseRadioButton.setChecked(true);
+    gui.clickButton(buttons.NextButton);
+}
+
+Controller.prototype.StartMenuDirectoryPageCallback = function() {
+    gui.clickButton(buttons.NextButton);
+}
+
+Controller.prototype.ReadyForInstallationPageCallback = function()
+{
+    gui.clickButton(buttons.NextButton);
+}
+
+Controller.prototype.FinishedPageCallback = function() {
+var checkBoxForm = gui.currentPageWidget().LaunchQtCreatorCheckBoxForm
+if (checkBoxForm && checkBoxForm.launchQtCreatorCheckBox) {
+    checkBoxForm.launchQtCreatorCheckBox.checked = false;
+}
+    gui.clickButton(buttons.FinishButton);
+}