QmlDesigner.MetaInfo: Adding isTabView()

Change-Id: I05fee773ed83a99fb14b495de3ace0bc87692fe9
Reviewed-by: Marco Bubke <marco.bubke@digia.com>
Debugger: Remove unused variable in autotests

GDB 7.7 changed behavior e.g. for the names of anonymous fields,
we need to adjust dumpers and some tests.

Change-Id: I25ae32cc56c4ff63b677a04d6ed9c250e0252140
Reviewed-by: hjk <hjk121@nokiamail.com>
Reinvent deprecated qSort as Utils::sort

Change-Id: I4f6011cc2b6127037249aabc2426a88ad7108ebf
Reviewed-by: Orgad Shaneh <orgads@gmail.com>
Reviewed-by: Daniel Teske <daniel.teske@digia.com>
Reviewed-by: hjk <hjk121@nokiamail.com>
Show Qt Quick templates only when needed plugins are available

A Qt Quick template should only be visible if its required plugins are
available.

Change-Id: I932563cb9ffd2a2eca0e77e9945638573d07ba3e
Reviewed-by: Jarek Kobus <jaroslaw.kobus@digia.com>