3.4.0 chromium update

update to bismuth

upgrade to 3.4.0 actinium

use ff version 52.0.2; install dbus to fix dbus issues; correct conta…

…iners; update to cesium; add debug to hub config; add role to hub config; fix comma-separated json values

upgrade to bohrium.

actually use 3.3.1

prepare 3.3.0

allow passing of application names; belongs with SeleniumHQ#411

Merge branch 'master' of github.com:seleniumhq/docker-selenium

update chromedriver/geckodriver. closes SeleniumHQ#384