Merge pull request #3013 from obrignoni/2.3/develop

2.3 Progress
Enhance SSL detection

In some advanced environments - $_SERVER['HTTPS'] is not available. Check for and use $_SERVER['HTTP_X_FORWARDED_PROTO'] in that case.

One known use case is running behind a load balancer that terminates SSL @ the load balancer and passes port 80 over the private network behind it.
The times are a changin..
Processed children..
Convert image field type
Fixed some issues

Blog was jacked-ish
Image field was bitchin
Fixes page stream content not parsing