Doc: Added "All QML Types" and "Obsolete QML Types" pages.

-used the same style and wording as the C++ pages.

Task-number: QTBUG-31490
Change-Id: I429863170de0a66ba5a5d5fed7f0bd67087f7cb6
Reviewed-by: Martin Smith <martin.smith@digia.com>
Merge remote-tracking branch 'origin/stable' into dev

Change-Id: I0415ba00c639d0509b3f8094a4c82eafddfa6296