Both implementations are now split into two source files, based on the
base class type. They share also a commen implementation, but the class
interface looks now clean to the outside. Adopt other classes for use.

Since we use a two column model/treeview we need to prevent returning
some text data, otherwise we will see dots in the secound column. We also
need to emit pagesChanged once we init the model.

Based on the implementation done by ck, slightly modified and thus put
under the private help internal namespace.

This fixes a crash when creating a new target and then directly
switch into the run settings view.

backtrace in the main editor.

Useful for sending bug reports.

This regression was caused by Qt change
6f88388db4e8e2, which disabled the automatic setting of QObject::parent

Reviewed-by: Marco Bubke

Reviewed-by: hjk

This stops projects with long project names from being displayed like
this:

 Project:
 longprojectName
 Target: Something

Thanks to Roberto for the suggestion.

Patch by Marco Bubke.

Task-Number: BAUHAUS-449

The interface for QDeclarativeListReference is bad because in Bauhaus we
need to remove many(all) items which a maybe never removed in the
runtime. So this canLear, canAppend functions renders bauhaus useless.

Task-ID: BAUHAUS-501

Reviewed-by: Marco Bubke

Task-Id: BAUHAUS-475

Task-Id: BAUHAUS-427