Automatically open browser on server start

- added --nobrowser to supress it
- using --debug will supress it.
Updated

-- openbrower opens the browser with the server
-- Added a option in settings general
-- As before a browser will not open if debug mode
Fix typo

Fixed typo and change variable name to something more self-explanatory
Fix typo
Merge pull request #187 from Hellowlol/open-browser

Open browser on --openbrowser or if the settings is active.