test (& fix) dev setup extension auto reloading

[franzenzenhofer]

test (& fix) dev setup extension auto reloading
update dev doc if necessary

[neuling]

@franzenzenhofer Auto reload works for me using chrome-cli installed via homebrew. What happens if you run grunt --reload-extension?

It should open chrome:https://extensions/ in a new tab if not already open and reload that tab which should reload the extension.

[neuling]

@franzenzenhofer Ok, I can reproduce some reload issues. Will fix.

[franzenzenhofer]

works

[franzenzenhofer]

when grunt (watch task) is not running this errors show up in the extension background error log

these errors schould not show up or should be able to get disabled

[neuling]

Diese Fehler kommen eben nur im Development-Mode wenn der grunt Task nicht läuft. In Production versucht die Extension nicht zu livereload zu connecten.