"Listing Settings" Snippets have a dependency on a non-existing domain intellistreet.dev

[chunyianliew]

When I try to edit the "Listing Settings" Snippet in the Admin Area, the snippets are not loaded in the page. I managed to reproduce the issue also on the demo site: http://demo.estatezilla.com

Steps to reproduce:
Open http://demo.estatezilla.com/admin
Login as 'admin'
Click on menu option 'Snippets'
Click on the edit icon on the first 'Listing Settings' row under the language column 'EN'.
The following 3 errors appear in the Chrome Developer Console (View -> Developer -> Javascript Console):

1. GET https://intellistreet.dev/api/property-types net::ERR_NAME_NOT_RESOLVED

2. alpaca.min.js:5 {"message":"Unable to load data from uri : http://intellistreet.dev/api/property-types","stage":"DATASOURCE_LOADING_ERROR","details":{"jqXHR":{"readyState":0,"status":0,"statusText":"error"},"textStatus":"error","errorThrown":""}}

3. alpaca.min.js:5 Uncaught Error: Alpaca caught an error with the default error handler: {"message":"Unable to load data from uri : http://intellistreet.dev/api/property-types","stage":"DATASOURCE_LOADING_ERROR","details":{"jqXHR":{"readyState":0,"status":0,"statusText":"error"},"textStatus":"error","errorThrown":""}}