this has only an effect if parsing the previous file failed in a place
with a non-empty stack.

testing data, children and resources properties

This allows more precise unit tests on internals

Task-number: QTCREATORBUG-2339

Inform the user about projects that failed to load as part
of a session.

Reviewed-by: dt

Do not throw projects that failed to load out of the session.
Remember the project file names and append them to the session
again when saving.

Reviewed-by: dt

Only kde-config (and the defined paths) was being considered previously.

Sometimes the role is not enough. In some systems we don't have a nice looking widget.
The info bar is now always black on light yellow. The fake vim command status is using default colors.

Task-number: QTCREATORBUG-2182
Reviewed-by: Thorbjorn Lindeijer

Task-number: QTCREATORBUG-2307
Reviewed-by: Thorbjorn Lindeijer

Reviewed-by: hjk

Task-number: QTCREATORBUG-2335

Rename 'QML standalone application' to 'QML application'
and the 'old-style' QML applications to
'QML Viewer based applications'.

For the QML renaming:
Rubber-stamped-by: Alessandro Portale <alessandro.portale@nokia.com>

Task-Number: QTCREATORBUG-2118