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We used to build a helper library as part of the project. First with the
qmake -after SOURCES= stuff and after until now with the
gdbmacrosbuildstep. Now, the all new and fancy integretation directtly
into the qt version dialog. You build the debugger library once for
each qt version and then it's there ready to be loaded into each
project build against that qt version. Saves a lot of time.
And makes it possible to also load that library into while debuggign a
cmake project. (Need to hook that up now.)
Unfourtanetly this breaks the custom dumpers if you use a custom run
executable.

Factor out watch function, improve debug output.

* Reviewed-by: hjk

Task-number: 233285

The BaseTextEditor was unconditionally setting the mouse cursor on each
mouse move event, after which the CPPEditor would set it as well when
the mouse was above a link. This caused some mouse cursor flickering, so
now the cursor is only set when it's supposed to change.

Also fixed an issue where the link wasn't removed when leaving the text
editor with the mouse while Ctrl was pressed.

Reviewed-by: hjk

By avoiding searching for the definition when it isn't necessary.

Cause blue doesn't fit nicely in all color schemes.

People with KDE 4.2.0 please update to 4.2.1 ...

Reviewed-by: dt

Reviewed-by: dt <qtc-committer@nokia.com>
 enter the commit message for your changes. Lines starting

There's no place to jump to in these cases.

Allowed customizing the link for includes and macro uses and fix it for
highlighting the name.

Allows navigating the code using the mouse when pressing Ctrl. Suggested
a few times and also seen in other IDEs.

Reviewed-by: hjk