* Added the ability to pick the SIP account for the first two slots on each handset
* Revert to clean base
* Configurable firmware versions for Grandstream Devices
* Cleaned up duplicate P codes in gxv3504 prov, and spacing elsewhere
Updated or added configurable firmware versions to the remaining Grandstream configs
* Documented how to use the firmware version feature
* Formatting fix in Readme
* 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