* Update Grandstream provisioning
* Add Vtech
* Create app_config.php
fix typo
* Update app_config.php
remove newline at end as it can break php
* Update app_config.php
remove newline at end as it can break php
* Create app_config.php
remove newline at end.
* Update app_config.php
remove trailing newline
* Create device_edit.php
Add both http and https
* Create app_config.php
remove newline
* Add gxp16xx and fix typos