Travis ui tests (#57)

* Prepare travis is tests

* Fix ffmpeg travis source

* Trying xenial

* Move shell scripts

* Upload video assets

* Upload video assets

* Change text input method

* Add ui test docker support

* Fix travis docker build

* Fix asset uploader

* Fix dockerfile

* Update dockerfile

* Change writeText behavior

* Fix type error

* Fix exit codes

* Fix types

* fix upload

* Fix writeText

* Fix argument name

* Add test scenarios

* Enable vnc and change mqtt host

docker/cloneBuildAndTest.sh

@@ -0,0 +1,12 @@
+#!/bin/bash
+set -e
+
+git clone https://github.com/thomasnordquist/MQTT-Explorer.git /app
+cd /app
+git checkout travis-ui-tests
+
+yarn
+yarn build
+
+yarn ui-test
+yarn upload-video-artifacts