Updated some dependencies

Testing what's delivered in containers

Surefire update because of https://issues.apache.org/jira/browse/SUREFIRE-1588 / https://stackoverflow.com/questions/53010200/maven-surefire-could-not-find-forkedbooter-class

Prevent conflicts with Commons by shading it

Package improvements

Documentation for the headless mode activation

…mockitFix

Added javaagent explicitly (windows build failed without it)

…xperimentalHeadless

… the front

Using normal write if fast write is called at headless mode

At clicking trying to bring window containing element to the top

… is enabled

- Checking in scrolling tests that app is in right stage at the beginning of test case
- Initializing library as headless mode false

monocle-issue as non-critical tag

Capturing full screen in case of error (as focus is not probably set to window that is interesting

Possibility to capture whole (primary) screen as a separate keyword

Fixes #19

Experimental headless

Capturing active window if locator is not given

…startup printout improvements

Running apt-get openjfx installs openjfx-11 which is
incompatible with openjdk-8. Workaround is to install
older version of openjfx.

…ment)