This commit adds support for following HTTP redirect responses on a per
request basis.
This behavior is disabled by default. It can be switched on by
setting the QNetworkRequest::FollowRedirectAttribute to true.
2 new error codes have been added to QNetworkReply:
* TooManyRedirectsError: Set when the number of redirects exceed a
given value set by the user (defaults to 50 if not set)
* UnsecureRedirectError: Set when we are redirecting from a 'https'
to 'http' protocol.
Test cases for the following scenarios:
* Single HTTP redirect using local test server
* Changing max-redirects
* Testing all redirect related error scenarios
The next commit will extend this feature at a QNAM level.
Task-number: QTBUG-8232
Change-Id: If9e28ad12bad08bcdc5bc511b1cd59dc9d8150f0
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@theqtcompany.com>