Only bind UUID generator if one is specified in config (archtechx#493)

Fix initialize() method (archtechx#488)

* Fix initialize() method

* Remove useless line

reverse middlewares order before prepend (archtechx#479)

Update typehint

Merge branch '3.x' of github.com:stancl/tenancy into 3.x

Qualify where column (archtechx#467)

Merge branch '3.x' of github.com:stancl/tenancy into 3.x

Cast $value to string

Use the Tenant models' getTenantKeyName() value (archtechx#461)

Don't assume the Tenant can be found with the `id` attribute. The Tenant model allows for setting a different Tenant key name through `getTenantKeyName()`, so lets use it to find the Tenant.

Set config() disk root too