closing windows with escape is now stacked again

PropertyReader now is able to parse ObjectDefinitions
and it is also possible to parse gradients.

I also added isBindingOrEnum()

Also show properties defined in the component, e.g. by 'property x',
in the outline.

We have to keep the line ending in case the removed
property is not the only thning in that line

Done-with: Thomas Hartmann

Done-with: Thomas Hartmann
Reviewed-by: Roberto Raggi

Add an Icons class to QmlJS along the Icons class in the C++ support.
This will be used in the QmlJS Outline.

Task-number: QTCREATORBUG-1737
Reviewed-by: Erik Verbruggen

When reading the xml file describing the Qml types, we incorrectly
classified all functions as methods. They should be slots, since
otherwise qmldump couldn't have dumped them in the first place.

Task-number: QTCREATORBUG-1755
Reviewed-by: Erik Verbruggen

By actually storing the documents instead of only the root and id
environments.

Filtering them out has long since become unnecessary. It was used back
when JS files were sourced from Script elements - there they'd only
make the functions available. Now functions and variables are imported.

Task-number: QTCREATORBUG-1735
Reviewed-by: Erik Verbruggen

The function was not used and made no sense.

Previously, the model manager always had exactly one import path - but
you can open more than one Qml project at once. Now, we store the union
of all import paths in the model manager.

Reviewed-by: Roberto Raggi

Reviewed-by: Erik Verbruggen

Task-number: QTCREATORBUG-1421
Reviewed-by: Erik Verbruggen

This is a "back-port" for 57f2b3e4 from master
into 2.0.

Done-with: ckamm

The type information is now generated at runtime.

Done-with: owolff

Task-number: QTCREATORBUG-1021
Reviewed-by: Roberto Raggi