Adds Travis CI config and corresponding Dockerfile

Author: j-ulrich

.gitignore

@@ -1,6 +1,7 @@
 .*
 !.gitignore
 !.appveyor.yml
+!.travis.yml
 build/
 .build/
 _build/

.travis.yml

@@ -0,0 +1,20 @@
+sudo: required
+
+services:
+  - docker
+
+before_script:
+  - cd tests
+  - docker build -t j-ulrich/http-status-codes -f Dockerfile ..
+
+script:
+  - > 
+    docker run j-ulrich/http-status-codes /bin/bash
+    g++ --version
+    && qmake --version
+    && cd tests
+    && mkdir _build
+    && cd _build
+    && cmake -DCMAKE_BUILD_TYPE=Release ..
+    && make all
+    && ctest --ouput-on-failure

tests/Dockerfile

@@ -0,0 +1,5 @@
+FROM julrich/docker_qt:latest
+
+RUN mkdir /build
+COPY . /build
+WORKDIR /build