GUI tests for the file browser

Merged David Sikter requested to merge 780-gui-tests-for-the-file-browser into v1.1.0

Closes #780 (closed). Adds tests for the file browser using the new gui test framework. Also does some fixes of the framework and renames all conftest.js files to conftest.spec.js to separate them better from the real code.

Edited by David Sikter

Merge request reports