Bugfix and language updates

Fixed links and language translations in installert.
Fixed outgoing mail issue.

example.env

@@ -1,18 +0,0 @@
-APP_ENV=production
-APP_DEBUG=false
-APP_KEY=SomeRandomString
-DB_TYPE=
-DB_HOST=
-DB_PORT=
-DB_DATABASE=
-DB_USERNAME=
-DB_PASSWORD=
-DB_INSTALL=%0%
-MAIL_DRIVER=smtp
-MAIL_HOST=mailtrap.io
-MAIL_PORT=2525
-MAIL_USERNAME=null
-MAIL_PASSWORD=null
-CACHE_DRIVER=file
-SESSION_DRIVER=file
-QUEUE_DRIVER=sync