* Changes the wait timeout for Saucelabs and Browserstack from 2 minutes to 1 minute. This is possible now because if the timeout fails we still re-try to create a connection a second time.
* The logfile output should be printed if the tunnel connection can't be established. The logging is also useful to see the update message from Saucelabs for example.
* Suppresses normal log messages from Saucelabs Conect. Error messages will still show up (In a follow-up PR the normal stdout will be printed together with the stdout on CI failures)
* No longer suppresses the whole Browserstack Tunnel execution. Stderr output will be printed if present. (In a follow-up stdout will be printed as well on CI failures)
* Switches to best-practice variable referencing in Bash
Paul Gschwendtner