* Split install steps into git clone and composer install
This gives the admin a little more knowledge about how to maintain the system, showing them composer_wrapper.php and su - librenms
They will get errors if composer_wrapper doesn't work because of a proxy or no internet connection
We lose stats on packagist.org (https://packagist.org/packages/librenms/librenms/stats)
If we wanted to keep stats, we could use:
```
COMPOSER_ALLOW_SUPERUSER=1 composer create-project --no-dev --no-install --keep-vcs librenms/librenms librenms dev-master
```
not sure that is worth it.
* fix composer_wrapper.php path
Tony Murray
PipoCanaja