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This feature is not polished enough.
Also since we use the complete canvas it does not make much sense.
So I disable it until we have time to polish it or decide to remove it
completely.

Change-Id: I8b73d583be1ee7183f4074bce49d5390e38631a2

Reviewed-by: hjk

Only show items that are available and use requiredImport for filtering

Also we do translate "Qml Components" anymore since it might get confusing
and all the other categories do not get translated, either.

StringBuilder problems ...

image providers to supply pixmaps so that the Image::source property can be
used instead.

Reviewed-by: kkoehne

ItemLibraryInfo has now a signal "entriesChanged()", which the ItemLibrary
connects to. To allow this, ItemLibraryInfo was moved from a stack-based to
a heap-based class.

Reviewed-by: Thomas Hartmann

Reviewed-by: Thomas Hartmann

The class represents one single entry in the library, therefore
the old name was misleading.

Reviewed-by: Thomas Hartmann

- clearing search input focus when clicking clear icon
- re-set updated sections' models
- using GridView-based item selection
- C++ code cleanup
- Manhattan-length used for drag & drop initiation
- integrated QtCreator's filter text input
- replaced QToolButtons with a QTabBar
- fix: eliding text & corrected selector offset
- styled resources view
- updated Qml syntax

Task-number: BAUHAUS-433
Reviewed-by: kkoehne

All files have been renamed from Qml to QDeclarative.
Registration of types is now done in an initializer method.
QmlView/QDeclarativeView doesn't have an execute method any more.
QDeclarativeMetaObject became private API.
QmlMetaProperty / QDeclarativeProperty has now different API.

Task-number: BAUHAUS-204
Task-number: BAUHAUS-207
Task-number: BAUHAUS-339
Task-number: BAUHAUS-365
Task-number: BAUHAUS-374
Reviewed-by: kkoehne

This adds a new "Design" mode that can be used to manipulate qml files
in a visual way. It will only get build if you have the declarativeui
module in Qt.

This is a squashed import from the Bauhaus project. Share & enjoy :)